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Viking 2's 30th!
PIA08723
Sol (our sun)
Mars Orbiter Camera
Title Viking 2's 30th!
Original Caption Released with Image 3 September 2006 Viking 2 landed 30 years ago today, on 3 September 1976. It was the second of the two Viking landings on Mars. Viking 1 touched down on 20 July 1976. Since the Viking missions of the 1970s, only 3 additional spacecraft have successfully landed and conducted their scientific investigations: Mars Pathfinder (1997), Mars Exploration Rover Spirit (2004-present), and Mars Exploration Rover Opportunity (2004-present). Two new U.S. Mars landed missions are currently in the works: Phoenix, launching in August 2007, and MSL (Mars Science Laboratory), launching in 2009. As with the 30th anniversary of the Viking 1 landing in July (see PIA08616 [ http://photojournal.jpl.nasa.gov/catalog/PIA08616 ]), for the Viking 2 30th anniversary, we show here the best Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) view of the landing site. On that day 30 years ago, Viking 2 landed in Utopia Planitia, west of Mie Crater, near 48.0°N, 225.7°W. At the time, it was considered that this might be a good place to look for evidence of life in the martian regolith. This middle north latitude site is often obscured by clouds in the winter and dust hazes in the spring. The surface was observed by the lander to be dusted by thin coatings of frost during the winter months. The exact location of the Viking 2 lander was uncertain until MOC obtained the high resolution view, shown above, in 2004. These images were previously released by the MOC team on 5 May 2005, along with what was then considered to be the best candidate for the Mars Polar Lander site (see "MGS Finds Viking 2 Lander and Mars Polar Lander (Maybe)" [ http://www.msss.com/mars_images/moc/2005/05/05/ ]). The candidate Polar Lander site was further imaged in 2005 and found not to be the lander (see PIA03044 [ http://photojournal.jpl.nasa.gov/catalog/PIA03044 ]). Figure 1 shows (A) a mosaic of Viking Orbiter images obtained in the 1970s at a resolution of 75 m/pixel, (B) a typical MGS MOC narrow angle camera view at about 3 meters/pixel (25x higher resolution than the Viking images), and (C, D) sections of a MOC image obtained at ~0.5 m/pixel. Figure 2 shows an extreme enlargement of the feature identified as Viking Lander 2, compared to a schematic drawing of the lander in the orientation determined during the Viking mission.
Viking 2's 30th!
PIA08723
Sol (our sun)
Mars Orbiter Camera
Title Viking 2's 30th!
Original Caption Released with Image 3 September 2006 Viking 2 landed 30 years ago today, on 3 September 1976. It was the second of the two Viking landings on Mars. Viking 1 touched down on 20 July 1976. Since the Viking missions of the 1970s, only 3 additional spacecraft have successfully landed and conducted their scientific investigations: Mars Pathfinder (1997), Mars Exploration Rover Spirit (2004-present), and Mars Exploration Rover Opportunity (2004-present). Two new U.S. Mars landed missions are currently in the works: Phoenix, launching in August 2007, and MSL (Mars Science Laboratory), launching in 2009. As with the 30th anniversary of the Viking 1 landing in July (see PIA08616 [ http://photojournal.jpl.nasa.gov/catalog/PIA08616 ]), for the Viking 2 30th anniversary, we show here the best Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) view of the landing site. On that day 30 years ago, Viking 2 landed in Utopia Planitia, west of Mie Crater, near 48.0°N, 225.7°W. At the time, it was considered that this might be a good place to look for evidence of life in the martian regolith. This middle north latitude site is often obscured by clouds in the winter and dust hazes in the spring. The surface was observed by the lander to be dusted by thin coatings of frost during the winter months. The exact location of the Viking 2 lander was uncertain until MOC obtained the high resolution view, shown above, in 2004. These images were previously released by the MOC team on 5 May 2005, along with what was then considered to be the best candidate for the Mars Polar Lander site (see "MGS Finds Viking 2 Lander and Mars Polar Lander (Maybe)" [ http://www.msss.com/mars_images/moc/2005/05/05/ ]). The candidate Polar Lander site was further imaged in 2005 and found not to be the lander (see PIA03044 [ http://photojournal.jpl.nasa.gov/catalog/PIA03044 ]). Figure 1 shows (A) a mosaic of Viking Orbiter images obtained in the 1970s at a resolution of 75 m/pixel, (B) a typical MGS MOC narrow angle camera view at about 3 meters/pixel (25x higher resolution than the Viking images), and (C, D) sections of a MOC image obtained at ~0.5 m/pixel. Figure 2 shows an extreme enlargement of the feature identified as Viking Lander 2, compared to a schematic drawing of the lander in the orientation determined during the Viking mission.
Viking 2's 30th!
PIA08723
Sol (our sun)
Mars Orbiter Camera
Title Viking 2's 30th!
Original Caption Released with Image 3 September 2006 Viking 2 landed 30 years ago today, on 3 September 1976. It was the second of the two Viking landings on Mars. Viking 1 touched down on 20 July 1976. Since the Viking missions of the 1970s, only 3 additional spacecraft have successfully landed and conducted their scientific investigations: Mars Pathfinder (1997), Mars Exploration Rover Spirit (2004-present), and Mars Exploration Rover Opportunity (2004-present). Two new U.S. Mars landed missions are currently in the works: Phoenix, launching in August 2007, and MSL (Mars Science Laboratory), launching in 2009. As with the 30th anniversary of the Viking 1 landing in July (see PIA08616 [ http://photojournal.jpl.nasa.gov/catalog/PIA08616 ]), for the Viking 2 30th anniversary, we show here the best Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) view of the landing site. On that day 30 years ago, Viking 2 landed in Utopia Planitia, west of Mie Crater, near 48.0°N, 225.7°W. At the time, it was considered that this might be a good place to look for evidence of life in the martian regolith. This middle north latitude site is often obscured by clouds in the winter and dust hazes in the spring. The surface was observed by the lander to be dusted by thin coatings of frost during the winter months. The exact location of the Viking 2 lander was uncertain until MOC obtained the high resolution view, shown above, in 2004. These images were previously released by the MOC team on 5 May 2005, along with what was then considered to be the best candidate for the Mars Polar Lander site (see "MGS Finds Viking 2 Lander and Mars Polar Lander (Maybe)" [ http://www.msss.com/mars_images/moc/2005/05/05/ ]). The candidate Polar Lander site was further imaged in 2005 and found not to be the lander (see PIA03044 [ http://photojournal.jpl.nasa.gov/catalog/PIA03044 ]). Figure 1 shows (A) a mosaic of Viking Orbiter images obtained in the 1970s at a resolution of 75 m/pixel, (B) a typical MGS MOC narrow angle camera view at about 3 meters/pixel (25x higher resolution than the Viking images), and (C, D) sections of a MOC image obtained at ~0.5 m/pixel. Figure 2 shows an extreme enlargement of the feature identified as Viking Lander 2, compared to a schematic drawing of the lander in the orientation determined during the Viking mission.
Viking Checkup
title Viking Checkup
date 05.20.1971
description A technician checks the soil sampler on an earlier generation of Mars lander - Viking - in this 1971 photo. Viking 1 became the first spacecraft to land safely on Mars on July 20, 1976. The robotic arm scooped samples of the Martian soil, emptied it into a hopper on the lander, which analyzed it with three scientific instruments. NASA's Viking Lander was designed, fabricated, and tested by the Martin Marietta Corp. of Denver, Colorado, under the direction of the Viking Progect Office at Langley Research Center, Hampton, Virginia. The lander drew heavily on the experience gained from the Ranger, Surveyor and the Apollo Programs in the areas of radar, altimeters, facsimile, cameras, soil samplers and landing gear. *Image Credit*: NASA
Viking 2 Image of Mars Utopi …
Title Viking 2 Image of Mars Utopian Plain
Full Description The boulder-strewn field of red rocks reaches to the horizon nearly two miles from Viking 2 on Mars' Utopian Plain. Scientists believe the colors of the Martian surface and sky in this photo represent their true colors. Fine particles of red dust have settled on spacecraft surfaces. The salmon color of the sky is caused by dust particles suspended in the atmosphere. Color calibration charts for the cameras are mounted at three locations on the spacecraft. Note the blue starfield and red stripes of the flag. The circular structure at top is the high-gain antenna, pointed toward Earth. Viking 2 landed September 3, 1976, some 4600 miles from its twin, Viking 1, which touched down on July 20.
Date 11/23/1976
NASA Center Jet Propulsion Laboratory
Viking I Spacecraft in Clean …
Title Viking I Spacecraft in Cleanroom
Full Description The planetary landing spacecraft Viking, which includes stereo cameras, a weather station, an automated stereo analysis laboratory and a biology instrument that can detect life, is under assembly at Martin Marietta Aerospace near Denver, Colorado. This Viking spacecraft will travel more than 460 million miles from Earth to a soft landing on Mars in 1976 to explore the surface and atmosphere of the red planet. Martin Marietta is prime and integration contractor for the Viking mission to NASA's Langley Research Center, Hampton, Virginia. The lander will be powered by two nuclear generators.
Date 05/01/1974
NASA Center Headquarters
Viking Phase III
PIA00531
Sol (our sun)
Camera 2
Title Viking Phase III
Original Caption Released with Image VIKING PHASE III - With the incredible success of the Viking missions on Mars, mission operations have progressed though a series of phases - each being funded as mission success dictated its potential. The Viking Primary Mission phase was concluded in November, 1976, when the reins were passed on to the second phase - the Viking Extended Mission. The Extended Mission successfully carried spacecraft operations through the desired period of time needed to provided a profile of a full Martian year, but would have fallen a little short of connecting and overlapping a full Martian year of Viking operations which scientists desired as a means of determining the degree of duplicity in the red planet's seasons - at least for the summer period. Without this continuation of spacecraft data acquisitions to and beyond the seasonal points when the spacecraft actually began their Mars observations, there would be no way of knowing whether the changing environmental values - such as temperatures and winds atmospheric dynamics and water vapor, surface thermal dynamics, etc. - would match up with those acquired as the spacecraft began investigations during the summer and fall of 1976. This same broad interest can be specifically pursued at the surface - where hundreds of rocks, soil drifts and other features have become extremely familiar during long-term analysis. This picture was acquired on the 690th Martian day of Lander 1 operations - 4009th picture sequence commanded of the two Viking Landers. As such, it became the first picture acquired as the third phase of Viking operations got under way - the Viking Continuation Mission. Between the start of the Continuation Mission in April, 1978, until spacecraft operations are concluded in November, the landers will acquire an additional 200 pictures. These will be used to monitor the two landscaped for the surface changes. All four cameras, two on Lander 1 and two on Lander 2, continue to operate perfectly. Both landers will also continue to monitor weather conditions - recording atmospheric pressure and its variations, daily temperature extremes, and wind behavior at the two lander locations.
Color view of Chryse Planiti …
title Color view of Chryse Planitia by the Viking 1 Lander
date 08.30.1976
description Viking 1 Lander image of Chryse Planitia looking over the lander. The large white object at lower left and center, with the American flag on the side, is the radiothermal generator (RTG) cover. The high-gain S-band antenna is at upper right. The view, from 22 N, 50 W, is to the northwest. Chryse Planitia is a wide, low plain covered with large rocks and loose sand and dust. The image was taken on 30 August 1976, a little over a month after landing. (Viking 1 Lander, 12B069) *Image Credit*: NASA
First Mars Surface Photo
Title First Mars Surface Photo
Full Description The image above is the first photograph ever taken from the surface of Mars. It was taken by the Viking 1 lander shortly after it touched down on Mars on July 20, 1976. Part of footpad #2 can be seen in the lower right corner, with sand and dust in the center of it, probably deposited during landing. The next day, color photographs were also taken on the Martian surface. The primary objectives of the Viking missions, which was composed of two spacecraft, were to obtain high-resolution images of the Martian surface, characterize the structure and composition of the atmosphere and surface, and search for evidence of life on Mars.
Date 07/20/1976
NASA Center Jet Propulsion Laboratory
Viking I Spacecraft in Clean …
title Viking I Spacecraft in Cleanroom
description The planetary landing spacecraft Viking, which includes stereo cameras, a weather station, an automated stereo analysis laboratory and a biology instrument that can detect life, under assembly at Martin Marietta Aerospace near Denver, Colorado. This Viking spacecraft will travel more than 460 million miles from Earth to a soft landing on Mars in 1976 to explore the surface and atmosphere of the red planet. Martin Marietta is prime and integration contractor for the Viking mission to NASA's Langley Research Center, Hampton, Virginia. The lander will be powered by two nuclear generators. *Image Credit*: NASA
Salmon Sky
title Salmon Sky
description The boulder-strewn field of red rocks reaches to the horizon nearly two miles from Viking 2 on Mars' Utopian Plain. Scientists believe the colors of the Martian surface and sky inthis photo represent their true colors. Fine particles of red dust have settled on spacecraft surfaces. The salmon color of the sky is caused by dust particles suspended in the atmosphere. Color calibration charts for the cameras are mounted at three locations on the spacecraft. Note the blue starfield and redstripes of the flag. The circular structure at top is the high-gain antenna, pointed toward Earth. Viking 2 landed September 3, 1976 - about 4,600 miles from its twin, Viking 1, which touched down on July 20. *Image Credit*: NASA
VL1 Digs A Deep Hole On Mars
PIA00529
Sol (our sun)
Camera 1
Title VL1 Digs A Deep Hole On Mars
Original Caption Released with Image VIKING LANDER DIGS A DEEP HOLE ON MARS -- This six-inch-deep, 12- inch-wide, 29-inch-long hole was dug Feb. 12 and 14 by Viking Lander 1 as the first sequence in an attempt to reach a foot beneath the surface of the red planet. The activity is in the same area where Lander 1 acquired its first soil samples last July. The trench was dug by repeatedly backhoeing in a left-right-center pattern. The backhoe teeth produced the small parallel ridges at the far end of the trench (upper left). The larger ridges running the length of the trench are material left behind during the backhoe operation. What appears to be small rocks along the ridges and in the soil at the near end of the trench are really small dirt clods. The clods and the steepness of the trench walls indicate the material is cohesive and behaves something like ordinary flour. After a later sequence, to be performed March 1 and 2, a soil sample will be taken from the bottom of the trench for inorganic soil analysis and later for biology analysis. Information about the soil taken from the bottom of the trench may help explain the weathering process on Mars and may help resolve the dilemma created by Viking findings that first suggest but then cast doubt on the possibility of life in the Martian soil. The trench shown here is a result of one of the most complex command sequences yet performed by the lander. Viking l has been operating at Chryse Planitia on Mars since it landed July 20, 1976.
Viking 2 Image of Mars Utopi …
PIA01522
Sol (our sun)
Camera 1
Title Viking 2 Image of Mars Utopian Plain
Original Caption Released with Image The boulder-strewn field of red rocks reaches to the horizon nearly two miles from Viking 2 on Mars' Utopian Plain. Scientists believe the colors of the Martian surface and sky in this photo represent their true colors. Fine particles of red dust have settled on spacecraft surfaces. The salmon color of the sky is caused by dust particles suspended in the atmosphere. Color calibration charts for the cameras are mounted at three locations on the spacecraft. Note the blue star field and red stripes of the flag. The circular structure at top is the high-gain antenna, pointed toward Earth. Viking 2 landed September 3,1976, some 4600 miles from its twin, Viking 1, which touched down on July 20.
Viking 1 Picture of the Mart …
Title Viking 1 Picture of the Martian Surface
Full Description Viking 1 obtained this color picture of the Martian surface and sky on July 24, 1976. Camera number 1 facing southeast captured part of the gray structured spacecraft in the foreground. A bright orange cable leads to one of the descent rocket engines. Orange-red surface materials cover most of the surface, apparently forming a thin veneer over dark bedrock. A zone of large dark boulders is present in the far-field. The sky has a reddish cast, which is probably due to scattering and reflection from reddish sediment suspended in the lower atmosphere. This picture had been radiometrically calibrated, using information on camera performance acquired before launch. Although the colors are very vivid the fidelity with which the bright orange cable is reproduced suggests the intense colors of the Martian surface.
Date 07/26/1976
NASA Center Jet Propulsion Laboratory
Mars: Just The Facts
Title Mars: Just The Facts
Explanation Mars [ http://www.challenger.org/marsl.html ], the freeze-dried planet [ http://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html ], orbits 137 million miles from the Sun or at about 1.5 times the Earth-Sun distance [ http://antwrp.gsfc.nasa.gov/apod/ap960727.html ]. It has two diminutive moons [ http://antwrp.gsfc.nasa.gov/apod/ap961222.html ], towering extinct volcanos [ http://antwrp.gsfc.nasa.gov/apod/ap950719.html ], an immense canyon system [ http://antwrp.gsfc.nasa.gov/apod/ap950720.html ], a thin atmosphere chiefly composed of carbon dioxide (CO2), a frigid average surface temperature of -63 degrees Celsius [ http://www.unidata.ucar.edu/staff/blynds/tmp.html ], and permanent frozen CO2 polar caps which contain some water ice. Mars' surface presently lacks liquid water [ http://antwrp.gsfc.nasa.gov/apod/ap970316.html ] and has a reddish color because of an abundance of oxidized iron compounds (rust). A small terrestrial planet [ http://www.seds.org/nineplanets/nineplanets/mars.html ], fourth from the Sun [ http://antwrp.gsfc.nasa.gov/apod/ap970528.html ], Mars has only about 3/8 the surface gravity of Earth. So for example, if you tip the scale at a hefty 200 pounds on Earth you'd be a 75 pound featherweight on Mars [ http://quest.arc.nasa.gov/mars/ ]. The low martian gravity will be good for NASA's Mars Pathfinder [ http://mpfwww.jpl.nasa.gov/ ] spacecraft scheduled to land on Mars [ http://bang.lanl.gov/solarsys/mars.htm ] next Friday, July 4th [ http://www.lpl.arizona.edu/imp/mission.success.html ]. Using rockets, parachutes, and airbags [ http://mars.sgi.com/mpf/realtime/edlpage.html ], Mars Pathfinder [ http://mpfwww.arc.nasa.gov/mpf/mission_ops.html ] will be the first spacecraft to touchdown on the planet since the Viking landers [ http://antwrp.gsfc.nasa.gov/apod/ap960722.html ] in 1976. Pathfinder is also scheduled to begin the first ever mobile surface exploration [ http://cmex-www.arc.nasa.gov/ ] by releasing the robot rover [ http://ranier.hq.nasa.gov/telerobotics_page/coolrobots96.html ], "Mars Sojourner" [ http://mars.sgi.com/rover/about.html ].
The Face on Mars
Title The Face on Mars
Explanation This image, showing what looks to be a human face sculpted on the martian surface, was produced using data from NASA's Viking 1 orbiter [ http://nssdc.gsfc.nasa.gov/planetary/viking.html ] in 1976. Described in a press release as a "face-like hill" it caused some to offer the sensational speculation that it was an artificial construct built by an intelligent civilization on Mars! As a result, this image was splashed across the covers of many grocery store tabloids at the time. A detailed analysis of multiple images of this feature reveals a natural looking martian hill whose illusory face-like appearance depends on viewing angle and angle of illumination. For more information about the picture see the NSSDC Photo Gallery of Mars. [ http://nssdc.gsfc.nasa.gov/photo_gallery/PhotoGallery-Mars.html#controversy ] For a detailed discussion of the "Face on Mars" see Calvin J. Hamilton's Face on Mars page. [ http://www.c3.lanl.gov/~cjhamil/SolarSystem/face.html ]
25 Years Ago: Vikings on Mar …
Title 25 Years Ago: Vikings on Mars
Explanation On July 20, 1976 [ http://science.nasa.gov/headlines/y2001/ast20jul_1.htm ], NASA's Viking 1 lander became the first [ http://www.star.le.ac.uk/edu/solar/sovmars.html ] U.S. spacecraft to land on Mars [ http://cmex-www.arc.nasa.gov/ ], followed weeks later by its twin robot explorer, the Viking 2 lander. Operating [ http://photojournal.jpl.nasa.gov/cgi-bin/ PIAGenCatalogPage.pl?PIA00563 ] on the Martian surface [ http://nssdc.gsfc.nasa.gov/photo_gallery/ photogallery-mars.html#surface ] into the early 1980s, the Vikings took [ http://history.nasa.gov/SP-425/cover.htm ] thousands of pictures, conducted [ http://nssdc.gsfc.nasa.gov/planetary/viking.html ] sophisticated chemical searches for life [ http://history.nasa.gov/SP-4212/ch11-6.html ], and studied the martian weather [ http://www-k12.atmos.washington.edu/k12/resources/ mars_data-information/mars_overview.html ] and geology. In the dramatically detailed image above, a field of rocks and boulders is viewed from the Viking 1 landing site on Chryse Planitia (the Plain of Chryse). Viking 1's dusty foot pad is just visible at the lower right. The image was created [ http://nssdc.gsfc.nasa.gov/photo_gallery/caption/ vikinglander1-2.txt ] by combining high resolution black and white images with lower resolution color images of the same area. NASA is continuing its well chronicled [ http://history.nasa.gov/SP-4212/on-mars.html ] martian exploration program as the Mars Odyssey [ http://mars.jpl.nasa.gov/odyssey/ ] spacecraft is scheduled to arrive at the mysterious [ http://antwrp.gsfc.nasa.gov/apod/ap970528.html ] Red Planet on October 24th. What's Mars like today [ http://science.nasa.gov/headlines/y2001/ ast16jul_1.htm ]?
Mars landscape - Utopian pla …
Title Mars landscape - Utopian plain with Viking Lander 2
Description Caption: "This boulder strewn field reaches to the horizon, nearly 2 miles distant from Viking Lander 2's position on Mars' Utopian Plain." Scientists believe the colors of the Martian surface and sky in this photo represent their true colors. Fine particles of red dust have settled on spacecraft surfaces. The salmon color of the sky is caused by dust particles suspended in the atmosphere. Color calibration charts for the cameras are mounted at three locations on the spacecraft. Note the blue starfield and red stripes of the flag. The circular structure at top is the high-gain antenna, pointed toward Earth. Viking 2 landed September 3, 1976, some 4600 miles from its twin, Viking 1, which touched down on July 20. Photograph and caption published in Winds of Change, 75th Anniversary NASA publication (pages 107), by James Schultz.
Date 06.21.1976
Surface Changes in Chryse Pl …
PIA00532
Sol (our sun)
Camera 1
Title Surface Changes in Chryse Planitia
Original Caption Released with Image At the conclusion of the Viking Continuation Mission (May to November, 1978), all four cameras on the Viking Landers - two on each spacecraft - continued to function normally. During the two and one-half years since the landers touched down on Mars, images totaled 2,255 for Viking Lander 1 and 2,016 for Viking Lander 2. The surface around the landers was completely photographed by the end of 1976, subsequent images acquired during 1977-1978 have concentrated on searching for changes in the scene - changes which can be used to infer both the types of erosive processes which modify the landscape around the landers and the rates at which these processes may occur. The major surface changes have included the water-ice snow seen by Lander 2 during the winter at Utopia Planitia, and a thin dust layer deposited at both sites during the dust storms of 1977. The most recently identified change occurred at Chryse Planitia between VL-1 sols 767 (Sept. 16, 1978) and 771 (Sept. 20, 1978) as seen in the lower photo. Picture at top, selected to show similar lighting conditions, was taken during sol 25 (August 15, 1976). The change (A) appears as a small circle-like formation on the side of a drift in the lee, or downwind, side of Whale Rock. This is believed to have been a small-scale landslide of an unstable dust layer which had accumulated behind the rock. Interpretation of this feature would be difficult without an earlier change (B) near Big Joe, a slump which occurred between sols 74 and 183. The new slump is approximately 25- 35 meters from the lander, and just under a meter across. The slumping probably was initiated by the daily heating and cooling of the surface by solar radiation. More importantly, it is now believed that, based on the repeated occurrence of such slumping features, a dust layer which overlies the surface may in fact be redistributed fairly regularly during periods of high wind activity. There are no obvious indications of fossil slump features, therefore similar features must be destroyed on a regular basis. After the end of February, when Viking operations essentially terminate, Lander 1 will continue preselected observations over a period of possibly up to 10 years, following the instructions stored in its computer memory. Earth commands will be required only to initiate data transmission to Earth. During this time, it is now anticipated that one of the yearly planetwide global dust storms may reach an intensity necessary to shift the dust cover around the lander significantly.
Geologic 'Face on Mars' Form …
PIA01141
Sol (our sun)
Visual Imaging Subsystem - C …
Title Geologic 'Face on Mars' Formation
Original Caption Released with Image NASA's Viking 1 Orbiter spacecraft photographed this region in the northern latitudes of Mars on July 25, 1976 while searching for a landing site for the Viking 2 Lander. The speckled appearance of the image is due to missing data, called bit errors, caused by problems in transmission of the photographic data from Mars to Earth. Bit errors comprise part of one of the 'eyes' and 'nostrils' on the eroded rock that resembles a human face near the center of the image. Shadows in the rock formation give the illusion of a nose and mouth. Planetary geologists attribute the origin of the formation to purely natural processes. The feature is 1.5 kilometers (one mile) across, with the sun angle at approximately 20 degrees. The picture was taken from a range of 1,873 kilometers (1,162 miles).
A Face On Mars
Title A Face On Mars
Explanation This image, showing what looks to be a human face [ http://www.hq.nasa.gov/office/pao/facts/HTML/FS-016-HQ.html ] (above center) and other features of the Cydonia region on the Martian surface [ http://antwrp.gsfc.nasa.gov/apod/ap960207.html ], was produced using data from NASA's Viking 1 [ http://nssdc.gsfc.nasa.gov/planetary/viking.html ] orbiter in 1976. Described in a NASA press release [ http://barsoom.msss.com/education/facepage/pio.html ] as a "rock formation which resembles a human head", some have since offered the extraordinary explanation that the face is an artificial construct built by a civilization on Mars [ http://www.seds.org/nineplanets/nineplanets/mars.html ]! However, most scientists have a more conventional view - that this feature [ http://barsoom.msss.com/education/facepage/face.html ] is indeed a natural Martian hill whose illusory face-like appearance [ http://barsoom.msss.com/education/happy_face/happy_face.html ] depends on illumination and viewing angle. This month [ http://www.jpl.nasa.gov/releases/98/cydonia2.html ], the Mars Global Surveyor [ http://mars.jpl.nasa.gov/mgs/ ] satellite will be in position to take new pictures [ ftp://ftp.hq.nasa.gov/pub/pao/pressrel/1998/98-050.txt ] of this region of controversial Martian features along with areas around the Mars Pathfinder [ http://antwrp.gsfc.nasa.gov/apod/ap971010.html ] and Viking landing [ http://antwrp.gsfc.nasa.gov/apod/ap960722.html ] sites.
Mars: Looking For Viking
Title Mars: Looking For Viking
Explanation On July 20, 1976, the Viking 1 lander [ http://antwrp.gsfc.nasa.gov/apod/ap960720.html ] touched down on the Martian Chryse Planitia. Its exact landing site is somewhere [ http://cmex-www.arc.nasa.gov/MarsTools/MarsAtlasMaps/ MarsAtlasMaps.html ] in the white rectangle above. Unfortunately, this wide angle Mars Global Surveyor image [ http://mars.jpl.nasa.gov/mgs/msss/camera/images/ 4_14_98_vl1_release/index.html ] taken on April 12 reveals a substantial dust storm in the area with light colored plumes apparently blowing toward the upper right of the picture. Attempts to find the first spacecraft to land on Mars [ http://www.uapress.arizona.edu/online.bks/mars/chap13.htm ] in the corresponding high resolution narrow field images have not been successful due in part to the increased atmospheric haze. The region shown here is about 100 miles across.
Viking 1's 30th!
PIA08616
Sol (our sun)
Mars Orbiter Camera
Title Viking 1's 30th!
Original Caption Released with Image 20 July 2006 Viking 1 landed 30 years ago today, on 20 July 1976. It was the first U.S. landing on Mars and a very exciting time for Mars exploration. Since that time, four additional spacecraft have successfully landed on Mars and conducted their science investigations. Today, new missions to the martian surface are in the works, with landings expected in 2008 (Phoenix) and 2010 (Mars Science Laboratory). The Viking 1 lander is difficult to see in Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) images. The western Chryse Planitia landing site is often obscured by dust hazes and occasional storms, especially during northern winter, which would otherwise be the best time to look for the lander from orbit because the sun casts longer shadows in winter. When the atmosphere is clearest, in portions of the spring and summer, the sun is higher in the sky as seen from MGS's orbit. The spacecraft always passes over the landing site region around 2 p.m. in the afternoon. The suite of pictures shown here describes the best MOC view of the landing site. These were previously released in May 2005 [ http://www.msss.com/mars_images/moc/2005/05/09/ ], but the MOC team felt that 20 July 2006 is an appropriate time to review this story. The first figure (left) visually tells how the lander was found. The initial observations of the location of Viking 1, as originally determined by members of the Viking science team based on sightlines to various crater rims seen in the lander images (black lines), did not show the detailed features we knew from the lander pictures (middle) to be in the area. Using geodetic measurements, the late Merton Davies of the RAND Corporation, a MGS MOC Co-Investigator, suggested that we should image areas to the east and north of where Viking 1 was thought to be. Timothy J. Parker of the Jet Propulsion Laboratory (Pasadena, California), using sightlines to crater rims seen in the lander images (white lines), deduced a location very close to that suggested by Davies. The MOC image of that location, acquired in 2003, showed additional near-field features (rocks associated with a nearby crater) that closely matched the Viking 1 images (center and right frame, where B denotes "Volkswagen Rock"). The inset (upper right) is an enlargement that shows the location of the Viking 1 lander. The MOC image of the Viking 1 lander site (right) was acquired during a test of the MGS Pitch and Roll Observation (PROTO) technique conducted on 11 May 2003. (Following initial tests, the "c" part of "cPROTO" was begun by adding compensation for the motion of the planet to the technique). The PROTO or cPROTO approach allows MOC to obtain images with better than its nominal 1.5 meters (5 ft) per pixel resolution. The image shown here (right) was map projected at 50 centimeters (~20 inches) per pixel. The full 11 May 2003 image can be viewed in the MOC Gallery [ http://www.msss.com/moc_gallery/ ], it is image, R05-00966 [ http://www.msss.com/moc_gallery/r03_r09/images/R05/R0500966.html ]. In addition to celebrating the 30th anniversary of the first U.S. robotic Mars landing, we note that 20 July is also the 37th anniversary of the first human landing on the Moon, on 20 July 1969. There are two dates that are most sacred in the space business (three, if you count the 4 October 1957 launch of Sputnik 1). The other date is 12 April, which celebrates the 1961 launch of the first human in space, and the 1981 launch of the first space shuttle orbiter.
Viking Lander 1 (Thomas A. M …
PIA01881
Sol (our sun)
HiRISE
Title Viking Lander 1 (Thomas A. Mutch Memorial Station) Imaged from Orbit
Original Caption Released with Image Annotated Version NASA's Viking Lander 1 touched down in western Chryse Planitia on July 20, 1976. The lander, which has a diameter of about 3 meters (10 feet), has been precisely located in this image from the High Resolution Imaging Science Experiment camera on NASA's Mars Reconnaissance Orbiter. Also, likely locations have been found for the heat shield, back shell, and parachute attached to the back shell. The lander location has been confirmed by overlaying the lander-derived topographic contours on the high-resolution camera's image, which provides an excellent match. Viking Lander 1 was one element of an ambitious mission to study Mars, with a four-spacecraft flotilla consisting of two orbiters and two landers. Four cutouts from this image are shown. The first is an overview showing the relative locations of the lander and candidate back shell and heat shield, and the others are enlargements of each of these components. Large boulders, dunes, and other features visible in Lander images can be located in the image. A prime motivation for early viewing of these Viking sites is to calibrate imagery taken from orbit with the data previously acquired by the landers. In particular, determining what sizes of rocks can be seen from Mars Reconnaissance Orbiter aids the interpretation of data now being taken to characterize sites for future landers, such as the Phoenix Mars Lander mission to be launched in 2007. Images from the High Resolution Imaging Science Experiment and additional information about the Mars Reconnaissance Orbiter are available online at: http://www.nasa.gov/mro [ http://www.nasa.gov/mro ] or http://HiRISE.lpl.arizona.edu [ http://HiRISE.lpl.arizona.edu ]. For information about NASA and agency programs on the Web, http://www.nasa.gov [ http://www.nasa.gov ]. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The High Resolution Imaging Science Experiment camera was built by Ball Aerospace Corporation and is operated by the University of Arizona.
Viking Lander 1 (Thomas A. M …
PIA01881
Sol (our sun)
HiRISE
Title Viking Lander 1 (Thomas A. Mutch Memorial Station) Imaged from Orbit
Original Caption Released with Image Annotated Version NASA's Viking Lander 1 touched down in western Chryse Planitia on July 20, 1976. The lander, which has a diameter of about 3 meters (10 feet), has been precisely located in this image from the High Resolution Imaging Science Experiment camera on NASA's Mars Reconnaissance Orbiter. Also, likely locations have been found for the heat shield, back shell, and parachute attached to the back shell. The lander location has been confirmed by overlaying the lander-derived topographic contours on the high-resolution camera's image, which provides an excellent match. Viking Lander 1 was one element of an ambitious mission to study Mars, with a four-spacecraft flotilla consisting of two orbiters and two landers. Four cutouts from this image are shown. The first is an overview showing the relative locations of the lander and candidate back shell and heat shield, and the others are enlargements of each of these components. Large boulders, dunes, and other features visible in Lander images can be located in the image. A prime motivation for early viewing of these Viking sites is to calibrate imagery taken from orbit with the data previously acquired by the landers. In particular, determining what sizes of rocks can be seen from Mars Reconnaissance Orbiter aids the interpretation of data now being taken to characterize sites for future landers, such as the Phoenix Mars Lander mission to be launched in 2007. Images from the High Resolution Imaging Science Experiment and additional information about the Mars Reconnaissance Orbiter are available online at: http://www.nasa.gov/mro [ http://www.nasa.gov/mro ] or http://HiRISE.lpl.arizona.edu [ http://HiRISE.lpl.arizona.edu ]. For information about NASA and agency programs on the Web, http://www.nasa.gov [ http://www.nasa.gov ]. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The High Resolution Imaging Science Experiment camera was built by Ball Aerospace Corporation and is operated by the University of Arizona.
Viking Lander 1 (Thomas A. M …
PIA01881
Sol (our sun)
HiRISE
Title Viking Lander 1 (Thomas A. Mutch Memorial Station) Imaged from Orbit
Original Caption Released with Image Annotated Version NASA's Viking Lander 1 touched down in western Chryse Planitia on July 20, 1976. The lander, which has a diameter of about 3 meters (10 feet), has been precisely located in this image from the High Resolution Imaging Science Experiment camera on NASA's Mars Reconnaissance Orbiter. Also, likely locations have been found for the heat shield, back shell, and parachute attached to the back shell. The lander location has been confirmed by overlaying the lander-derived topographic contours on the high-resolution camera's image, which provides an excellent match. Viking Lander 1 was one element of an ambitious mission to study Mars, with a four-spacecraft flotilla consisting of two orbiters and two landers. Four cutouts from this image are shown. The first is an overview showing the relative locations of the lander and candidate back shell and heat shield, and the others are enlargements of each of these components. Large boulders, dunes, and other features visible in Lander images can be located in the image. A prime motivation for early viewing of these Viking sites is to calibrate imagery taken from orbit with the data previously acquired by the landers. In particular, determining what sizes of rocks can be seen from Mars Reconnaissance Orbiter aids the interpretation of data now being taken to characterize sites for future landers, such as the Phoenix Mars Lander mission to be launched in 2007. Images from the High Resolution Imaging Science Experiment and additional information about the Mars Reconnaissance Orbiter are available online at: http://www.nasa.gov/mro [ http://www.nasa.gov/mro ] or http://HiRISE.lpl.arizona.edu [ http://HiRISE.lpl.arizona.edu ]. For information about NASA and agency programs on the Web, http://www.nasa.gov [ http://www.nasa.gov ]. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The High Resolution Imaging Science Experiment camera was built by Ball Aerospace Corporation and is operated by the University of Arizona.
Viking Lander 1 (Thomas A. M …
PIA01881
Sol (our sun)
HiRISE
Title Viking Lander 1 (Thomas A. Mutch Memorial Station) Imaged from Orbit
Original Caption Released with Image Annotated Version NASA's Viking Lander 1 touched down in western Chryse Planitia on July 20, 1976. The lander, which has a diameter of about 3 meters (10 feet), has been precisely located in this image from the High Resolution Imaging Science Experiment camera on NASA's Mars Reconnaissance Orbiter. Also, likely locations have been found for the heat shield, back shell, and parachute attached to the back shell. The lander location has been confirmed by overlaying the lander-derived topographic contours on the high-resolution camera's image, which provides an excellent match. Viking Lander 1 was one element of an ambitious mission to study Mars, with a four-spacecraft flotilla consisting of two orbiters and two landers. Four cutouts from this image are shown. The first is an overview showing the relative locations of the lander and candidate back shell and heat shield, and the others are enlargements of each of these components. Large boulders, dunes, and other features visible in Lander images can be located in the image. A prime motivation for early viewing of these Viking sites is to calibrate imagery taken from orbit with the data previously acquired by the landers. In particular, determining what sizes of rocks can be seen from Mars Reconnaissance Orbiter aids the interpretation of data now being taken to characterize sites for future landers, such as the Phoenix Mars Lander mission to be launched in 2007. Images from the High Resolution Imaging Science Experiment and additional information about the Mars Reconnaissance Orbiter are available online at: http://www.nasa.gov/mro [ http://www.nasa.gov/mro ] or http://HiRISE.lpl.arizona.edu [ http://HiRISE.lpl.arizona.edu ]. For information about NASA and agency programs on the Web, http://www.nasa.gov [ http://www.nasa.gov ]. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The High Resolution Imaging Science Experiment camera was built by Ball Aerospace Corporation and is operated by the University of Arizona.
Viking Lander 1 (Thomas A. M …
PIA01881
Sol (our sun)
HiRISE
Title Viking Lander 1 (Thomas A. Mutch Memorial Station) Imaged from Orbit
Original Caption Released with Image Annotated Version NASA's Viking Lander 1 touched down in western Chryse Planitia on July 20, 1976. The lander, which has a diameter of about 3 meters (10 feet), has been precisely located in this image from the High Resolution Imaging Science Experiment camera on NASA's Mars Reconnaissance Orbiter. Also, likely locations have been found for the heat shield, back shell, and parachute attached to the back shell. The lander location has been confirmed by overlaying the lander-derived topographic contours on the high-resolution camera's image, which provides an excellent match. Viking Lander 1 was one element of an ambitious mission to study Mars, with a four-spacecraft flotilla consisting of two orbiters and two landers. Four cutouts from this image are shown. The first is an overview showing the relative locations of the lander and candidate back shell and heat shield, and the others are enlargements of each of these components. Large boulders, dunes, and other features visible in Lander images can be located in the image. A prime motivation for early viewing of these Viking sites is to calibrate imagery taken from orbit with the data previously acquired by the landers. In particular, determining what sizes of rocks can be seen from Mars Reconnaissance Orbiter aids the interpretation of data now being taken to characterize sites for future landers, such as the Phoenix Mars Lander mission to be launched in 2007. Images from the High Resolution Imaging Science Experiment and additional information about the Mars Reconnaissance Orbiter are available online at: http://www.nasa.gov/mro [ http://www.nasa.gov/mro ] or http://HiRISE.lpl.arizona.edu [ http://HiRISE.lpl.arizona.edu ]. For information about NASA and agency programs on the Web, http://www.nasa.gov [ http://www.nasa.gov ]. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The High Resolution Imaging Science Experiment camera was built by Ball Aerospace Corporation and is operated by the University of Arizona.
First Image of Mars
title First Image of Mars
date 07.20.1976
description The image above is the first photograph ever taken from the surface of Mars. It was taken by the Viking 1 lander shortly after it touched down on Mars on July 20, 1976. Part of footpad #2 can be seen in the lower right corner, with sand and dust in the center of it, probably deposited during landing. The next day, color photographs were also taken on the Martian surface. The primary objectives of the Viking missions, which was composed of two spacecraft, were to obtain high-resolution images of the Martian surface, characterize the structure and composition of the atmosphere and surface, and search for evidence of life on Mars.
Colorful Water Clouds Over M …
Title Colorful Water Clouds Over Mars
Explanation One place where water can be found on Mars [ http://www.nineplanets.org/mars.html ] is in clouds [ http://www-airs.jpl.nasa.gov/html/edu/clouds/What_are_clouds.html ]. In the above picture [ http://photojournal.jpl.nasa.gov/cgi-bin/PIAGenCatalogPage.pl?PIA03213 ] colorful water clouds [ http://antwrp.gsfc.nasa.gov/apod/ap971013.html ] are visible just after sunrise in and around a maze of canyons [ http://antwrp.gsfc.nasa.gov/apod/ap980212.html ] known as Noctis Labyrinthus [ http://ic-www.arc.nasa.gov/ic/projects/bayes-group/Atlas/Mars/features/n/noctis_labyrinthus.html ] (the labyrinth of the night). Scientists don't yet know, however, why these clouds formed [ http://apod.gsfc.nasa.gov/cgi-bin/apod/apod_search?clouds+and+mars ], and why some stick to the canyons [ http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1997LPI....28.1413T ]. One exciting possibility is that water sometimes condenses [ http://faldo.atmos.uiuc.edu/w_unit/LESSONS/condensation.html ] in shaded regions [ http://antwrp.gsfc.nasa.gov/apod/ap980306.html ] of the canyon [ http://antwrp.gsfc.nasa.gov/apod/ap950720.html ]s, only to evaporate [ http://school.discovery.com/homeworkhelp/worldbook/atozscience/e/187400.html ] into clouds when exposed to the morning Sun [ http://antwrp.gsfc.nasa.gov/apod/ap991110.html ]. Water in any form on the Martian surface [ http://antwrp.gsfc.nasa.gov/apod/ap000514.html ] might be important to sustaining life and possible future human exploration [ http://mars.jpl.nasa.gov/science/human/index.html ]. Viking Orbiter 1 [ http://nssdc.gsfc.nasa.gov/planetary/viking.html ], which visited Mars [ http://antwrp.gsfc.nasa.gov/apod/mars.html ] in 1976, took the above picture [ http://photojournal.jpl.nasa.gov/cgi-bin/PIAGenCatalogPage.pl?PIA03213 ]. The region shown is about 100 kilometers across.
The Search for Life on Mars
Title The Search for Life on Mars
Explanation Although images of Mars taken from space revealed the planet to have a barren and cratered surface, scientists did not give up the search for martian life. In 1976 NASA's Viking project [ http://nssdc.gsfc.nasa.gov/planetary/viking.html ] succeeded in landing two robot probes on the surface of Mars. These landers were able to carry out sophisticated chemical experiments to look for signs of microscopic life in the martian soil. However, the experiments failed to produce any convincing evidence for life on Mars. Cameras onboard the Viking Landers also returned spectacular photos of the rocky martian landscape, like the one above, which showed no sign of martian animal or plant life. For more information about the picture see The NSSDC Mars Photo Gallery [ http://nssdc.gsfc.nasa.gov/photo_gallery/PhotoGallery-Mars.html#surface ]. The exploration of Mars is chronicled by the Center For Mars Exploration. [ http://cmex-www.arc.nasa.gov/ ]
If You Could Stand on Mars
Title If You Could Stand on Mars
Explanation If you could stand on Mars [ http://antwrp.gsfc.nasa.gov/apod/ap960721.html ] - what would you see? Viking 1 robot landers answered this question in 1976 with pictures like the one shown above. The dark rocks, red soil, and green-tinged sky grace this rendition [ http://barsoom.msss.com/mars/pictures/viking_lander/ viking_lander.html ] of a normal Martian [ http://seds.lpl.arizona.edu/nineplanets/nineplanets/mars.html ] afternoon. At the bottom corners of the picture are portions of Viking spacecraft. The red color of the rocks is caused by an abundance of iron in the soil. The Martian [ http://nssdc.gsfc.nasa.gov/photo_gallery/PhotoGallery-Mars.html ] surface is covered by rocks, huge craters [ http://antwrp.gsfc.nasa.gov/apod/ap960203.html ], fantastic canyons [ http://antwrp.gsfc.nasa.gov/apod/ap950720.html ], and gigantic volcanoes [ http://antwrp.gsfc.nasa.gov/apod/ap950719.html ] that dwarf any on Earth [ http://antwrp.gsfc.nasa.gov/apod/ap951216.html ]. No life has been found, but some speculate that since not all spacecraft reaching Mars [ http://cmex-www.arc.nasa.gov/ ] from Earth [ http://antwrp.gsfc.nasa.gov/apod/ap950824.html ] had been fully decontaminated [ http://cmex-www.arc.nasa.gov/Exo_Strat/Docs/protection.html ], Earth born microbes [ http://www.discovery.com/DCO/doc/1012/world/nature/deceit/deceit4.1.html ] might live there now [ http://commtechlab.msu.edu/CTLProjects/dlc-me/news/ns1095ap4.html ].
Utopia on Mars
Title Utopia on Mars
Explanation The Viking 2 spacecraft was launched on the Road to Utopia [ http://ballet.cit.gu.edu.au/M/title-exact?title=Road+to+Utopia ] in September of 1975 (30 years after Bing, Dotty, and Bob). In August of 1976, after making the second successful Martian landing, Viking 2's lander began recording data used to produce this exquisitely detailed [ http://antwrp.gsfc.nasa.gov/apod/ap960720.html ] image of the Martian surface [ http://bang.lanl.gov/solarsys/marssurf.htm ] in the area of Utopia Planitia (the Plain of Utopia). Visible at the lower right are the protective shroud that covered the lander's soil collector head, ejected after the descent, along with one of the lander's dust covered footpads. Seen near the center are shallow trenches dug by the sampler arm [ http://ceps.nasm.edu:2020/MARS/viking_lab.html#life ]. Mars looks red because its surface is covered with reddish iron oxide dust (rust). This dust, suspended in the thin carbon dioxide atmosphere [ http://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html ], also filters the sunlight causing surface views [ http://nssdc.gsfc.nasa.gov/photo_gallery/ photogallery-mars.html#surface ] to take on a reddish tinge. The Vikings made the first successful landings [ http://nssdc.gsfc.nasa.gov/planetary/text/viking_20th.txt ] on Mars 20 years ago [ http://ceps.nasm.edu:2020/MARS/VIKING/CAPTIONS/cap_marsfirst.html ]. What does Mars look like today? [ http://cmex-www.arc.nasa.gov/MarsImages/MarsToday/MarsToday.html ]
Ophir Chasma
PIA00425
Sol (our sun)
Title Ophir Chasma
Original Caption Released with Image During its examination of Mars, the Viking 1 spacecraft returned images of Valles Marineris, a huge canyon system 5,000 km long, up to 240 km wide, and 6.5 km deep, whose connected chasma or valleys may have formed from a combination of erosional collapse and structural activity. This synthetic oblique view shows Ophir Chasma, the northern most one of the connected valleys of Valles Marineris, north toward top of frame, for scale, the large impact crater in lower right corner is 30 km (18 miles) wide. This point-perspective, digital image, centered at latitude 4 degrees S., longitude 71 degrees, is a composite of Viking 1 Orbiter high-resolution (about 80 m/pixel or picture element) images in black and white and low-resolution (about 250 m/pixel) images in color, no vertical exaggeration. The Viking 1 craft landed on Mars in July of 1976. Ophir Chasma is a large west-northwest-trending trough about 100 km wide. The Chasma is bordered by 4 km high walled cliffs, most likely faults, that show spur-and-gully morphology and smooth sections. The walls have been dissected by landslides forming reentrants, one area (upper left) on the north wall shows a young landslide about 100 km wide. The volume of the landslide debris is more than 1000 times greater than that from the May 18, 1980 debris avalanche from Mount St. Helens. The longitudinal grooves seen in the foreground are thought to be due to differential shear and lateral spreading at high velocities. The landslide passes between mounds of interior layered deposits on the floor of the chasma.
Viking 1 on Mars
title Viking 1 on Mars
date 07.23.1976
description Sand dunes and large rocks are revealed in this panoramic image of Mars taken by Viking 1's Camera 1. The horizon is approximately 3 kilometers (2 miles) away. The late afternoon sun is high in the sky over the left side of the picture. The support struts of the S-band high-gain antenna extends to the top of the picture. The American flags are located on the two RTG (Radioisotope Thermoeletric Generator) wind screens. In the middle third of the picture the rocky surface is covered by thick deposits of wind-blown material, forming numerous dunes. At the center of the picture on the horizon are two low hills which may be part of the rim of the distant crater. Two very large rocks are visible in the middle ground, the nearer one is 3 meters (10 feet) in diameter and is 8 meters (25 feets) from the spacecraft. A cloud layer is visible halfway between the horizon and the top of the picture. The meterology boom is located right of center. Behind it, the "White Mesa" is visible. In the nearer ground are numerous rocks about 10cm (4 inches) across, with horse-shoe shaped scour marks on their upwind side and wind tails in their lee. The fine grained material in the front of them contains small pits formed by impact of material kicked out by the lander's descent rocket engines. *Image Credit*: NASA
Barsoom
Title Barsoom
Explanation Yes, I have been to Barsoom again ..." begins John Carter in Edgar Rice Burroughs' 1913 science fiction classic "The Gods of Mars" [ http://www.literature.org/Works/Edgar-Rice-Burroughs/gods-of-mars/ ]. In Burroughs' novels describing Carter's adventures on Mars, "Barsoom" is the local inhabitants' name [ http://humbabe.arc.nasa.gov/mgcm/fun/pop.html ] for the Red Planet. Long after Burroughs' stories were published, Mars continues [ http://history.nasa.gov/SP-4212/on-mars.html ] to inspire Earthdweller [ http://nssdc.gsfc.nasa.gov/planetary/mars/mars_crew.html ]s' interests [ http://antwrp.gsfc.nasa.gov/apod/ap970627.html ] and imagination [ http://antwrp.gsfc.nasa.gov/apod/ap970528.html ]. Soon it will again be invaded by spacecraft from Earth [ http://mars.jpl.nasa.gov ]. This dramatic picture of a crescent Mars was taken by NASA's Viking 2 [ http://nssdc.gsfc.nasa.gov/cgi-bin/ database/www-nmc?75-083A ] spacecraft as it approached [ http://www2.jpl.nasa.gov/files/images/captions/ p17442.txt ] Barsoom in 1976.
Mars Pathfinder's Landing Si …
Title Mars Pathfinder's Landing Site
Explanation Where is Mars Pathfinder [ http://mpfwww.jpl.nasa.gov/default.html ]? Follow the arrow in the above picture taken by the Viking Orbiter [ http://nssdc.gsfc.nasa.gov/planetary/viking.html ] in 1976. From the surface Mars [ http://antwrp.gsfc.nasa.gov/apod/ap970705.html ] appears covered with rocks, but from orbit Mars [ http://mars.sgi.com/ops/sol6.html ] appears covered with craters. However, several familiar features are visible in this photograph [ http://nssdc.gsfc.nasa.gov/planetary/marsland.html ]. To the left (west) of Sagan Memorial Station [ http://antwrp.gsfc.nasa.gov/apod/ap970710.html ] are the now-familiar twin peaks [ http://antwrp.gsfc.nasa.gov/apod/ap970714.html ] that dominate the horizon of many Pathfinder photographs [ http://mars.sgi.com/default.html ]. These hills are about one kilometer from the landing site, twice the planned range of Sojourner [ http://mpfwww.jpl.nasa.gov/rover/faqs_sojourner.html ]. Two craters loom nearby: a small one to the east not easily visible here, and a big one to the south of Pathfinder. The landing site is in the dry flood channel named Ares Vallis [ http://members.aol.com/space7/exper.html ].
Barsoom
Title Barsoom
Explanation Yes, I have been to Barsoom again ..." begins John Carter in Edgar Rice Burroughs' 1913 science fiction classic "The Gods of Mars" [ http://www.literature.org/Works/Edgar-Rice-Burroughs/gods-of-mars/ ]. In Burroughs' novels describing Carter's adventures on Mars, "Barsoom" is the local inhabitants' name [ http://humbabe.arc.nasa.gov/mgcm/fun/pop.html ] for the Red Planet. Long after Burroughs' stories were published, Mars continues [ http://mars.jpl.nasa.gov/ ] to inspire Earthdweller [ http://nssdc.gsfc.nasa.gov/planetary/mars/mars_crew.html ]s' interests [ http://antwrp.gsfc.nasa.gov/apod/ap970627.html ] and imagination [ http://antwrp.gsfc.nasa.gov/apod/ap970528.html ]. Soon it will again be invaded by spacecraft from Earth [ http://antwrp.gsfc.nasa.gov/apod/ap990108.html ]. This dramatic picture of a crescent Mars was taken by NASA's Viking 2 [ http://nssdc.gsfc.nasa.gov/cgi-bin/database/www-nmc?75-083A ] spacecraft in 1976.
1st Manned Lunar Landing and …
PIA03902
Sol (our sun)
Thermal Emission Imaging Sys …
Title 1st Manned Lunar Landing and 1st Robotic Mars Landing Commemorative Release: Viking 1 Landing Site in Chryse Planitia - Visible Image
Original Caption Released with Image (Released 20 July 2002) The date July 20 marks two major milestones in humanity's grand push to explore the frontier of space. On this date, in 1969, the Apollo 11 lunar module Eagle landed the first men (Neil Armstrong and Edwin "Buzz" Aldrin) on another celestial body, the Moon . In 1976, seven years to the day, the robotic Viking 1 Lander made the first successful landing on the ruddy rock strewn surface of Mars . To commemorate these milestones the THEMIS Team is releasing both an IR (Infra-Red) and Visible image of the Viking 1 landing site. THEMIS is currently imaging landing sites for future robotic missions including the twin Mars Exploration Rovers set to touchdown in January 2004. All of these missions anticipate the day when, hopefully in the not too distant future, astronauts will land on the red planet. So as we reflect on our rich tradition of space exploration let us also dream and plan on a wondrous future exploring the mysterious red planet. Viking 1 landed on a relatively smooth plain in Chryse Planitia (Plains of Gold), which is a low region of the northern hemisphere of Mars. The reported landing site is 22.48° N, 49.97° W. The landing site is marked with an X in the images. This region of Mars is dominated by plains, wrinkle ridges, and impact craters. This 4 framelet image is part of a 5 band image sequence. This image primarily contains plains, wrinkle ridges and craters. Some craters have ripples on their floors, which are probably dunes while other craters have some type of deposit on their floors. These deposits are most likely aeolian in nature. In places the wrinkle ridges appear to be buried or mantled with material that may be either volcanic and or fluvial in origin. The lander's view of the surface shows an undulating rocky surface with some finer grained materials present, and distant crater rims and wrinkle ridges.
1st Manned Lunar Landing and …
PIA03902
Sol (our sun)
Thermal Emission Imaging Sys …
Title 1st Manned Lunar Landing and 1st Robotic Mars Landing Commemorative Release: Viking 1 Landing Site in Chryse Planitia - Visible Image
Original Caption Released with Image (Released 20 July 2002) The date July 20 marks two major milestones in humanity's grand push to explore the frontier of space. On this date, in 1969, the Apollo 11 lunar module Eagle landed the first men (Neil Armstrong and Edwin "Buzz" Aldrin) on another celestial body, the Moon . In 1976, seven years to the day, the robotic Viking 1 Lander made the first successful landing on the ruddy rock strewn surface of Mars . To commemorate these milestones the THEMIS Team is releasing both an IR (Infra-Red) and Visible image of the Viking 1 landing site. THEMIS is currently imaging landing sites for future robotic missions including the twin Mars Exploration Rovers set to touchdown in January 2004. All of these missions anticipate the day when, hopefully in the not too distant future, astronauts will land on the red planet. So as we reflect on our rich tradition of space exploration let us also dream and plan on a wondrous future exploring the mysterious red planet. Viking 1 landed on a relatively smooth plain in Chryse Planitia (Plains of Gold), which is a low region of the northern hemisphere of Mars. The reported landing site is 22.48° N, 49.97° W. The landing site is marked with an X in the images. This region of Mars is dominated by plains, wrinkle ridges, and impact craters. This 4 framelet image is part of a 5 band image sequence. This image primarily contains plains, wrinkle ridges and craters. Some craters have ripples on their floors, which are probably dunes while other craters have some type of deposit on their floors. These deposits are most likely aeolian in nature. In places the wrinkle ridges appear to be buried or mantled with material that may be either volcanic and or fluvial in origin. The lander's view of the surface shows an undulating rocky surface with some finer grained materials present, and distant crater rims and wrinkle ridges.
1st Manned Lunar Landing and …
PIA03902
Sol (our sun)
Thermal Emission Imaging Sys …
Title 1st Manned Lunar Landing and 1st Robotic Mars Landing Commemorative Release: Viking 1 Landing Site in Chryse Planitia - Visible Image
Original Caption Released with Image (Released 20 July 2002) The date July 20 marks two major milestones in humanity's grand push to explore the frontier of space. On this date, in 1969, the Apollo 11 lunar module Eagle landed the first men (Neil Armstrong and Edwin "Buzz" Aldrin) on another celestial body, the Moon . In 1976, seven years to the day, the robotic Viking 1 Lander made the first successful landing on the ruddy rock strewn surface of Mars . To commemorate these milestones the THEMIS Team is releasing both an IR (Infra-Red) and Visible image of the Viking 1 landing site. THEMIS is currently imaging landing sites for future robotic missions including the twin Mars Exploration Rovers set to touchdown in January 2004. All of these missions anticipate the day when, hopefully in the not too distant future, astronauts will land on the red planet. So as we reflect on our rich tradition of space exploration let us also dream and plan on a wondrous future exploring the mysterious red planet. Viking 1 landed on a relatively smooth plain in Chryse Planitia (Plains of Gold), which is a low region of the northern hemisphere of Mars. The reported landing site is 22.48° N, 49.97° W. The landing site is marked with an X in the images. This region of Mars is dominated by plains, wrinkle ridges, and impact craters. This 4 framelet image is part of a 5 band image sequence. This image primarily contains plains, wrinkle ridges and craters. Some craters have ripples on their floors, which are probably dunes while other craters have some type of deposit on their floors. These deposits are most likely aeolian in nature. In places the wrinkle ridges appear to be buried or mantled with material that may be either volcanic and or fluvial in origin. The lander's view of the surface shows an undulating rocky surface with some finer grained materials present, and distant crater rims and wrinkle ridges.
1st Manned Lunar Landing and …
PIA03901
Sol (our sun)
Thermal Emission Imaging Sys …
Title 1st Manned Lunar Landing and 1st Robotic Mars Landing Commemorative Release: Viking 1 Landing Site in Chryse Planitia - Infrared Image
Original Caption Released with Image (Released 20 July 2002) The date July 20 marks two major milestones in humanity's grand push to explore the frontier of space. On this date, in 1969, the Apollo 11 lunar module Eagle landed the first men (Neil Armstrong and Edwin "Buzz" Aldrin) on another celestial body, the Moon . In 1976, seven years to the day, the robotic Viking 1 Lander made the first successful landing on the ruddy rock strewn surface of Mars . To commemorate these milestones the THEMIS Team is releasing both an IR (Infra-Red) and Visible image of the Viking 1 landing site. THEMIS is currently imaging landing sites for future robotic missions including the twin Mars Exploration Rovers set to touchdown in January 2004. All of these missions anticipate the day when, hopefully in the not too distant future, astronauts will land on the red planet. So as we reflect on our rich tradition of space exploration let us also dream and plan on a wondrous future exploring the mysterious red planet. Viking 1 landed on a relatively smooth plain in Chryse Planitia (Plains of Gold), which is a low region of the northern hemisphere of Mars. The reported landing site is 22.48° N, 49.97° W. The landing site is marked with an X in the images. This region of Mars is dominated by plains, wrinkle ridges, and impact craters. This one band IR (band 9 at 12.6 microns) image shows bright and dark textures, which are primarily due to differences in the abundance of rocks on the surface. The relatively cool (dark) regions during the day are rocky or indurated materials whereas fine sand and dust are warmer (bright). The brightness levels show daytime surface temperatures, which range from about minus 34 degrees to minus 22 degrees Celsius (minus 29 degrees to minus 8 degrees Fahrenheit). Many of the temperature variations are due to slope effects, with sun-facing slopes warmer than shaded slopes. The dark rings around several of the craters are due to the presence of rocky (cool) material ejected from the crater. These rocks are well below the resolution of any existing Mars camera, but THEMIS can detect the temperature variations they produce. Daytime temperature variations are produced by a combination of topographic (solar heating) and thermophysical (thermal inertia and albedo) effects. Due to topographic heating the surface morphologies seen in THEMIS daytime IR images are similar to those seen in previous imagery and MOLA topography. Smooth, undulating, and ridged plains dominate this scene. The major thermophysical variations seen in daytime images are associated with impact craters and the wrinkle ridges. Other than these ejecta deposits and the wrinkle ridges, there is little variation in the thermophysical properties of the surface materials.
Utopian Plain
title Utopian Plain
Description The boulder-strewn field of red rocks reaches to the horizon nearly two miles from Viking 2 on Mars' Utopian Plain. Scientists believe the colors of the Martian surface and sky in this photo represent their true colors. Fine particles of red dust have settled on spacecraft surfaces. The salmon color of the sky is caused by dust particles suspended in the atmosphere. Color calibration charts for the cameras are mounted at three locations on the spacecraft. Note the blue starfield and red stripes of the flag. The circular structure at top is the high- gain antenna, pointed toward Earth. Viking 2 landed September 3, 1976, some 4600 miles from its twin, Viking 1, which touched down on July 20. Note: Unsure if this is from Camera 1 or Camera 2. This image was scanned from physical media.
East Candor Chasma
PIA00424
Sol (our sun)
Visual Imaging Subsystem - C …
Title East Candor Chasma
Original Caption Released with Image During its examination of Mars, the Viking 1 spacecraft returned images of Valles Marineris, a huge canyon system 5,000 km long, up to 240 km wide, and 6.5 km deep, whose connected chasma or valleys may have formed from a combination of erosional collapse and structural activity. The view shows east Candor Chasma, one of the connected valleys of Valles Marineris, north toward top of frame, for scale, the impact crater in upper right corner is 15 km (9 miles) wide. The image, centered at latitude 7.5 degrees S., longitude 67.5 degrees, is a composite of Viking 1 Orbiter high-resolution (about 80 m/pixel or picture element) images in black and white and low-resolution (about 250 m/pixel) images in color. The Viking 1 craft landed on Mars in July of 1976. East Candor Chasma occupies the eastern part of the large west-northwest-trending trough of Candor Chasma. This section is about 150 km wide. East Candor Chasma is bordered on the north and south by walled cliffs, most likely faults. The walls may have been dissected by landslides forming reentrants, one area on the north wall shows what appears to be landslide debris. Both walls show spur-and-gully morphology and smooth sections. In the lower part of the image northwest-trending, linear depressions on the plateau are younger graben or fault valleys that cut the south wall. Material central to the chasma shows layering in places and has been locally eroded by the wind to form flutes and ridges. These interior layered deposits have curvilinear reentrants carved into them, and in one locale a lobe flows away from the top of the interior deposit. The lobe may be mass-wasting deposits due to collapse of older interior deposits (Lucchitta, 1996, LPSC XXVII abs., p. 779- 780), this controversial idea requires that the older layered deposits were saturated with ice, perhaps from former lakes, and that young volcanism and/or tectonism melted the ice and made the material flow.
West Candor Chasma
PIA00403
Sol (our sun)
Visual Imaging Subsystem - C …
Title West Candor Chasma
Original Caption Released with Image During its examination of Mars, the Viking 1 spacecraft returned images of Valles Marineris, a huge canyon system 5,000 km long, up to 240 km wide, and 6.5 km deep, whose connected chasma or valleys may have formed from a combination of erosional collapse and structural activity. The view shows west Candor Chasma, one of the connected valleys of Valles Marineris, north toward top of frame. The image is a composite of Viking high-resolution (about 80 m/pixel or picture element) images in black and white and low resolution (about 250 m/pixel) images in color. The Viking 1 craft landed on Mars in July of 1976. West Candor Chasma occupies the westernmost part of the large west-northwest-trending trough of Candor Chasma. This section is about 150 km wide. West Candor Chasma is bordered on the north and south by straight-walled cliffs, most likely faults, and on its west by two segments of north-northeast-trending cliffs. The north wall is dissected by landslide scars forming reentrants filled with landslide debris. The south wall shows spur-and-gully morphology and smooth sections. The high-standing central mesa, informally dubbed Red Mesa has several curvilinear reentrants carved into the caprock, whose anomalously colored layers were interpreted to be caused by young hydrothermal alteration products (Geissler et al., 1993, Icarus, v. 106, p. 380-391). Light-colored lobes flow away from the top of the interior stack and then flow around and embay the same layered stack from which they originated. One of these apparent flow features is composed of at least two or perhaps even three huge, superposed, vaguely layered, very rugged, light-colored lobes as much as 100 km long, 20 km wide, and over 2 km thick. The layered deposits below the caprock also merge with a chaotic material that has local lobate fronts and overlaps landslide deposits. Hummocky material, similar in hue to wall rock, fills the southwestern-most region of west Candor Chasma and is perhaps as much as 3 km thick (Lucchitta, 1990, Icarus, v. 86, p. 476- 509). The light-colored lobes, chaotic material, and hummocky fill may be mass wasting deposits due to wholesale collapse of older interior deposits (Lucchitta, 1996, LPSC XXVII abs., p. 779- 780), this controversial idea requires that the older layered deposits were saturated with ice, perhaps from former lakes and that young volcanism and/or tectonism melted the ice and made the material flow.
Boulder 'Big Joe' And Surfac …
PIA00397
Sol (our sun)
Camera 1
Title Boulder 'Big Joe' And Surface Changes On Mars
Original Caption Released with Image This pair of pictures from Viking Lander 1 at Mars' Chryse Planitia shows the only unequivocal change in the Martian surface seen by either lander. Both images show the one-meter (3-foot) high boulder nicknamed 'Big Joe.' Just to the lower right of the rock (right photo) is a small-scale slump feature. The picture at left shows a smooth, dust-covered slope, in the picture at right the top surface layer can be seen to have slipped downslope. The event occurred sometime between Oct. 4, 1976, and Jan 24, 1977. (Pictures taken before Oct. 4 do not show the slump, the first picture in which it appears was taken Jan. 24.) The surface layer, between one-half and one centimeter (one-fifth to one-third inch) thick, is apparently less cohesive than the underlying material. The layer that slipped formed a 30-centimeter-long (11.8-inch) 'tongue' of soil and a patch of exposed underlying material. The triggering mechanism for the event is unknown, but could have been temperature variations, wind gusts, a seismic event, or perhaps the lander's touchdown on July 20, 1976.
Mutch Crater
PIA08709
Sol (our sun)
Title Mutch Crater
Original Caption Released with Image 27 August 2006 Thomas A. Mutch has been called an explorer of two worlds. Known to colleagues as Tim, he was born on August 26, 1931. An avid mountaineer as well as a scientist, he climbed in the Canadian Rockies and the Himalayas, and had a passion for exploration in all its forms. Mutch became a geologist after majoring in history at Princeton, he received a master's degree from Rutgers and a doctorate from Princeton. In 1960 he became a geology professor at Brown University, later serving as department chairman. In the late 1960s, Mutch applied the geologic discipline called stratigraphy to the study of features on the Moon, work that led to his writing the landmark book, "The Geology of the Moon". Mutch went on to become the leader of the Viking Lander Imaging Team, which had responsibility for obtaining and interpreting the first images from the surface of Mars. Following the successful touchdowns of Viking 1 on July 20, 1976 and Viking 2 a few weeks later, the twin landers transmitted a total of more than 4,000 images from the Martian surface. Mutch had an ability to inspire those around him and a dedication to involving young people in the experience of exploration. He helped create the Viking Student Intern program, a pioneering educational activity since duplicated by many planetary missions, which allowed several dozen college students to participate in the Viking mission. At Brown, where he taught a seminar in exploration, he invited students to participate in a Himalayan climbing expedition. In May 1978, Mutch led a team of 32 students, faculty, and alumni to the21,900-foot Indian peak Devistan, 24 of them, including Mutch, made it to the summit. In October 1980, Mutch died on the slopes of Mount Nun in the Himalayas, following a climbing accident while descending from the 23,410-foot summit. At the time he was on leave from Brown, serving as NASA's Associate Administrator for Space Science. His legacy endures in the many minds and spirits he helped nurture. In the planetary science community his former students include R. Stephen Saunders, James W. Head, III, Raymond E. Arvidson, and James B. Garvin. In 1981, NASA administrator Robert Frosch announced that the Viking 1 lander had been renamed the Mutch Memorial Station, and unveiled a stainless steel plaque that is to be placed on the lander, someday, by a team of explorers. The inscription on the plaque reads, "Dedicated to the memory of Tim Mutch, whose imagination, verve, and resolve contributed greatly to the exploration of the Solar System." Located at 0.6°N, 55.3°W, Mutch Crater is about 211 kilometers (131 miles) in diameter. Naming of this crater for Tim Mutch was approved by the International Astronomical Union (IAU) in 1985. The main image is a mosaic of Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) red wide angle images acquired during the MOC Geodesy Campaign [ http://www.msss.com/mars_images/moc/5_17_99_geodesy/ ], in May 1999. The white boxes show the location of figures 1 and 2. Figure 1 is a mosaic of MOC and lower-resolution Mars Odyssey THEMIS VIS images that cover a smaller, unnamed crater located in west-central Mutch Crater. Figure 2 is a portion of the mosaic of the small, unnamed crater, showing landslide deposits formed when material slumped off the crater wall. The source alcoves of the landslides are well defined, as are longitudinal troughs and ridges on the surface of the landslides. These mass movements occurred long after the crater was formed, judging by the difference in the number of small impact craters on their surfaces and on the nearby floor of the crater. The view of the landslides in the northeast corner of the small, unnamed crater in Mutch was acquired by the MGS MOC just a few days ago, on 23 August 2006, to commemorate the 75th birthday of Tim Mutch on 26 August 2006. Noted space writer Andrew Chaikin (http://www.andrewchaikin.com [ http://www.andrewchaikin.com ]), a former Tim Mutch student, suggested the 23 August 2006 MGS MOC image and contributed to the text of this release.
Mutch Crater
PIA08709
Sol (our sun)
Title Mutch Crater
Original Caption Released with Image 27 August 2006 Thomas A. Mutch has been called an explorer of two worlds. Known to colleagues as Tim, he was born on August 26, 1931. An avid mountaineer as well as a scientist, he climbed in the Canadian Rockies and the Himalayas, and had a passion for exploration in all its forms. Mutch became a geologist after majoring in history at Princeton, he received a master's degree from Rutgers and a doctorate from Princeton. In 1960 he became a geology professor at Brown University, later serving as department chairman. In the late 1960s, Mutch applied the geologic discipline called stratigraphy to the study of features on the Moon, work that led to his writing the landmark book, "The Geology of the Moon". Mutch went on to become the leader of the Viking Lander Imaging Team, which had responsibility for obtaining and interpreting the first images from the surface of Mars. Following the successful touchdowns of Viking 1 on July 20, 1976 and Viking 2 a few weeks later, the twin landers transmitted a total of more than 4,000 images from the Martian surface. Mutch had an ability to inspire those around him and a dedication to involving young people in the experience of exploration. He helped create the Viking Student Intern program, a pioneering educational activity since duplicated by many planetary missions, which allowed several dozen college students to participate in the Viking mission. At Brown, where he taught a seminar in exploration, he invited students to participate in a Himalayan climbing expedition. In May 1978, Mutch led a team of 32 students, faculty, and alumni to the21,900-foot Indian peak Devistan, 24 of them, including Mutch, made it to the summit. In October 1980, Mutch died on the slopes of Mount Nun in the Himalayas, following a climbing accident while descending from the 23,410-foot summit. At the time he was on leave from Brown, serving as NASA's Associate Administrator for Space Science. His legacy endures in the many minds and spirits he helped nurture. In the planetary science community his former students include R. Stephen Saunders, James W. Head, III, Raymond E. Arvidson, and James B. Garvin. In 1981, NASA administrator Robert Frosch announced that the Viking 1 lander had been renamed the Mutch Memorial Station, and unveiled a stainless steel plaque that is to be placed on the lander, someday, by a team of explorers. The inscription on the plaque reads, "Dedicated to the memory of Tim Mutch, whose imagination, verve, and resolve contributed greatly to the exploration of the Solar System." Located at 0.6°N, 55.3°W, Mutch Crater is about 211 kilometers (131 miles) in diameter. Naming of this crater for Tim Mutch was approved by the International Astronomical Union (IAU) in 1985. The main image is a mosaic of Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) red wide angle images acquired during the MOC Geodesy Campaign [ http://www.msss.com/mars_images/moc/5_17_99_geodesy/ ], in May 1999. The white boxes show the location of figures 1 and 2. Figure 1 is a mosaic of MOC and lower-resolution Mars Odyssey THEMIS VIS images that cover a smaller, unnamed crater located in west-central Mutch Crater. Figure 2 is a portion of the mosaic of the small, unnamed crater, showing landslide deposits formed when material slumped off the crater wall. The source alcoves of the landslides are well defined, as are longitudinal troughs and ridges on the surface of the landslides. These mass movements occurred long after the crater was formed, judging by the difference in the number of small impact craters on their surfaces and on the nearby floor of the crater. The view of the landslides in the northeast corner of the small, unnamed crater in Mutch was acquired by the MGS MOC just a few days ago, on 23 August 2006, to commemorate the 75th birthday of Tim Mutch on 26 August 2006. Noted space writer Andrew Chaikin (http://www.andrewchaikin.com [ http://www.andrewchaikin.com ]), a former Tim Mutch student, suggested the 23 August 2006 MGS MOC image and contributed to the text of this release.
Mutch Crater
PIA08709
Sol (our sun)
Title Mutch Crater
Original Caption Released with Image 27 August 2006 Thomas A. Mutch has been called an explorer of two worlds. Known to colleagues as Tim, he was born on August 26, 1931. An avid mountaineer as well as a scientist, he climbed in the Canadian Rockies and the Himalayas, and had a passion for exploration in all its forms. Mutch became a geologist after majoring in history at Princeton, he received a master's degree from Rutgers and a doctorate from Princeton. In 1960 he became a geology professor at Brown University, later serving as department chairman. In the late 1960s, Mutch applied the geologic discipline called stratigraphy to the study of features on the Moon, work that led to his writing the landmark book, "The Geology of the Moon". Mutch went on to become the leader of the Viking Lander Imaging Team, which had responsibility for obtaining and interpreting the first images from the surface of Mars. Following the successful touchdowns of Viking 1 on July 20, 1976 and Viking 2 a few weeks later, the twin landers transmitted a total of more than 4,000 images from the Martian surface. Mutch had an ability to inspire those around him and a dedication to involving young people in the experience of exploration. He helped create the Viking Student Intern program, a pioneering educational activity since duplicated by many planetary missions, which allowed several dozen college students to participate in the Viking mission. At Brown, where he taught a seminar in exploration, he invited students to participate in a Himalayan climbing expedition. In May 1978, Mutch led a team of 32 students, faculty, and alumni to the21,900-foot Indian peak Devistan, 24 of them, including Mutch, made it to the summit. In October 1980, Mutch died on the slopes of Mount Nun in the Himalayas, following a climbing accident while descending from the 23,410-foot summit. At the time he was on leave from Brown, serving as NASA's Associate Administrator for Space Science. His legacy endures in the many minds and spirits he helped nurture. In the planetary science community his former students include R. Stephen Saunders, James W. Head, III, Raymond E. Arvidson, and James B. Garvin. In 1981, NASA administrator Robert Frosch announced that the Viking 1 lander had been renamed the Mutch Memorial Station, and unveiled a stainless steel plaque that is to be placed on the lander, someday, by a team of explorers. The inscription on the plaque reads, "Dedicated to the memory of Tim Mutch, whose imagination, verve, and resolve contributed greatly to the exploration of the Solar System." Located at 0.6°N, 55.3°W, Mutch Crater is about 211 kilometers (131 miles) in diameter. Naming of this crater for Tim Mutch was approved by the International Astronomical Union (IAU) in 1985. The main image is a mosaic of Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) red wide angle images acquired during the MOC Geodesy Campaign [ http://www.msss.com/mars_images/moc/5_17_99_geodesy/ ], in May 1999. The white boxes show the location of figures 1 and 2. Figure 1 is a mosaic of MOC and lower-resolution Mars Odyssey THEMIS VIS images that cover a smaller, unnamed crater located in west-central Mutch Crater. Figure 2 is a portion of the mosaic of the small, unnamed crater, showing landslide deposits formed when material slumped off the crater wall. The source alcoves of the landslides are well defined, as are longitudinal troughs and ridges on the surface of the landslides. These mass movements occurred long after the crater was formed, judging by the difference in the number of small impact craters on their surfaces and on the nearby floor of the crater. The view of the landslides in the northeast corner of the small, unnamed crater in Mutch was acquired by the MGS MOC just a few days ago, on 23 August 2006, to commemorate the 75th birthday of Tim Mutch on 26 August 2006. Noted space writer Andrew Chaikin (http://www.andrewchaikin.com [ http://www.andrewchaikin.com ]), a former Tim Mutch student, suggested the 23 August 2006 MGS MOC image and contributed to the text of this release.
First Picture of Mars
Title First Picture of Mars
Full Description Sand dunes and large rocks are revealed in this panoramic image of Mars, the first photograph taken by Viking 1's Camera 1 on July 23, 1976. The horizon is approximately 3 kilometers (2 miles) away. The left and right thirds of the picture are the same area that were photographed on July 20 (Sol 0) by camera 2 and provide stereo coverage. The middle third reveals a part of the Martian Surface not seen on the July 20th panorama. The late afternoon sun is high in the sky over the left side of the picture. The support struts of the S-band high-gain antenna extends to the top of the picture. The American flags are located on the two RTG (Radioisotope Thermoeletric Generator) wind screens. In the middle third of the picture the rocky surface is covered by thick deposits of wind-blown material, forming numerous dunes. At the center of the picture on the horizon are two low hills which may be part of the rim of the distant crater. Two very large rocks are visible in the middle ground, the nearer one is 3 meters (10 feet) in diameter and is 8 meters (25 feets) from the spacecraft. A cloud layer is visible halfway between the horizon and the top of the picture. The meterology boom is located right of center. Behind it, the "White Mesa" is visible, which could be seen on the far left side of the Sol 0 Camera 2 panorama. In the nearer ground are numerous rocks about 10cm (4 inches) across, with horse-shoe shaped scour marks on their upwind side and wind tails in their lee. The fine grained material in the front of them contains small pits formed by impact of material kicked out by the lander's descent rocket engines.
Date 07/23/1976
NASA Center Headquarters
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