Narrow Search
 
 

Remove

  1. Moon
Advanced Search

Search Results: All Fields similar to 'Voyager' and What equal to 'Moon'

Printer Friendly
1 2 3 4 … 11 12
1-50 of 583
     
     
Solar System Montage of Voya …
Title Solar System Montage of Voyager Images
Full Description This montage of images taken by the Voyager spacecraft of the planets and four of Jupiter's moons is set against a false-color Rosette Nebula with Earth's moon in the foreground. Studying and mapping Jupiter, Saturn, Uranus, Neptune, and many of their moons, Voyager provided scientists with better images and data than they had ever had before or expected from the program. Although launched sixteen days after Voyager 2, Voyager 1's trajectory was a faster path, arriving at Jupiter in March 1979. Voyager 2 arrived about four months later in July 1979. Both spacecraft were then directed to Saturn with Voyager 1 arriving in November 1980 and Voyager 2 in August 1981. Voyager 2 was then diverted to the remaining gas giants, Uranus in January 1986 and Neptune in August 1989. Data collection continues by both Voyager 1 and 2 as the renamed Voyager Interstellar Mission searches for the edge of the solar wind influence (the heliopause) and exits the Solar System. A shortened list of the discoveries of Voyager 1 and 2 include:the discovery of the Uranian and Neptunian magnetospheres (magnetic environments caused by various types of planet cores), the discovery of twenty-two new satellites including three at Jupiter, three at Saturn, ten at Uranus, and six at Neptune, Io was found to have active volcanism (the only other Solar System body than Earth to be confirmed), Triton was found to have active geyser-like structures and an atmosphere, Auroral Zones (where gases become excited after being hit by solar particles) were discovered at Jupiter, Saturn, and Neptune, Jupiter was found to have rings, Neptune, originally thought to be too cold to support such atmospheric disturbances, had large-scale storms.
Date UNKNOWN
NASA Center Jet Propulsion Laboratory
First Picture of the Earth a …
Title First Picture of the Earth and Moon in a Single Frame
Full Description This picture of the Earth and Moon in a single frame, the first of its kind ever taken by a spacecraft, was recorded September 18, 1977, but NASAs Voyager 1 when it was 7.25 million miles (11.66 million kilometers) from Earth. The moon is at the top of the picture and beyond the Earth as viewed by Voyager. In the picture are eastern Asia, the western Pacific Ocean and part of the Arctic. Voyager 1 was directly above Mt. Everest (on the night side of the planet at 25 degrees north latitude) when the picture was taken. The photo was made from three images taken through color filters, then processed by the Image Processing Lab at Jet Propulsion Laboratory (JPL). Because the Earth is many times brighter than the Moon, the Moon was artificially brightened by a factor of three relative to the Earth by computer enhancement so that both bodies would show clearly in the prints. Voyager 1 was launched September 5, 1977 and Voyager 2 on August 20, 1977. JPL is responsible for the Voyager mission.
Date 09/18/1977
NASA Center Jet Propulsion Laboratory
Stereo Saturn
Title Stereo Saturn
Explanation Get out your red/blue glasses [ http://img.arc.nasa.gov/archive/desert96/redblue.html ] and launch [ http://antwrp.gsfc.nasa.gov/apod/ap971016.html ] yourself into this stereo [ http://cass.jsc.nasa.gov/research/stereo_atlas/SS3D.HTM ] picture of Saturn! The picture is actually composed from two images recorded weeks apart by the Voyager 2 spacecraft [ http://vraptor.jpl.nasa.gov/voyager/voyager_fs.html ] during its visit to [ http://nssdc.gsfc.nasa.gov/planetary/voyager.html ] the Saturnian System in August of 1981. Traveling at about 35,000 miles per hour, the spacecraft's changing viewpoint from one image to the next produced this exaggerated but pleasing stereo effect [ http://antwrp.gsfc.nasa.gov/apod/ap970404.html ]. Saturn is the second largest planet [ http://seds.lpl.arizona.edu/nineplanets/nineplanets/saturn.html ] in the Solar System, after Jupiter. Its spectacular ring system [ http://ringmaster.arc.nasa.gov/saturn/saturn.html ] is so wide that it would span the space between the Earth and Moon. Although they look solid here, Saturn's [ http://antwrp.gsfc.nasa.gov/apod/ap000129.html ] rings consist of individually orbiting bits of ice and rock ranging in size from grains of sand to barn-sized boulders.
Stereo Saturn
Title Stereo Saturn
Explanation Get out your red/blue glasses [ http://img.arc.nasa.gov/archive/desert96/redblue.html ] and launch [ http://antwrp.gsfc.nasa.gov/apod/ap981224.html ] yourself into this stereo [ http://cass.jsc.nasa.gov/research/stereo_atlas/SS3D.HTM ] picture of Saturn! The picture is actually composed from two images recorded weeks apart by the Voyager 2 spacecraft [ http://vraptor.jpl.nasa.gov/voyager/voyager_fs.html ] during its visit to the Saturnian System [ http://nssdc.gsfc.nasa.gov/planetary/voyager.html ] in August of 1981. Traveling at about 35,000 miles per hour, the spacecraft's changing viewpoint from one image to the next produced this exaggerated but pleasing stereo effect [ http://antwrp.gsfc.nasa.gov/apod/ap970404.html ]. Saturn is the second largest planet in the Solar System [ http://seds.lpl.arizona.edu/nineplanets/nineplanets/saturn.html ], after Jupiter. Its spectacular ring system [ http://ringmaster.arc.nasa.gov/saturn/saturn.html ] is so wide that it would span the space between the Earth and Moon. Although they look solid here, Saturn's Rings [ http://antwrp.gsfc.nasa.gov/apod/ap981105.html ] consist of individually orbiting bits of ice and rock ranging in size from grains of sand to barn-sized boulders.
Voyager's Ocean Planet
title Voyager's Ocean Planet
date 09.18.1977
description This picture of the Earth and Moon in a single frame, the first of its kind ever taken by a spacecraft, was recorded September 18, 1977, but NASAs Voyager 1 when it was 7.25 million miles (11.66 million kilometers) from Earth. The moon is at the top of the picture and beyond the Earth as viewed by Voyager. In the picture are eastern Asia, the western Pacific Ocean and part of the Arctic. Voyager 1 was directly above Mt. Everest (on the night side of the planet at 25 degrees north latitude) when the picture was taken. The photo was made from three images taken through color filters, then processed by the Image Processing Lab at Jet Propulsion Laboratory (JPL). Because the Earth is many times brighter than the Moon, the Moon was artificially brightened by a factor of three relative to the Earth by computer enhancement so that both bodies would show clearly in the prints. Voyager 1 was launched September 5, 1977 and Voyager 2 on August 20, 1977. JPL is responsible for the Voyager mission. *Image Credit*: NASA
First Picture of the Earth a …
The picture of the Earth and …
8/1/08
Description The picture of the Earth and Moon in a single frame, the first of its kind ever taken by a spacecraft, was recorded September 18, 1977, by NASA's Voyager 1 when it was 7.25 million miles (11.66 million kilometers) from Earth.
Date 8/1/08
Jupiter System Montage
Title Jupiter System Montage
Full Description Jupiter and its four planet-size moons, called the Galilean satellites, were photographed in early March 1979 by Voyager 1 and assembled into this collage. They are not to scale but are in their relative positions. Startling new discoveries on the Galilean moons and the planet Jupiter made by Voyager l factored into a new mission design for Voyager 2. Reddish Io (upper left) is nearest Jupiter, then Europa (center), Ganymede and Callisto (lower right). Nine other much smaller satellites circle Jupiter, one inside Io's orbit and the other millions of miles from the planet. Not visible is Jupiter's faint ring of particles, seen for the first time by Voyager 1. The Voyager Project is managed for NASA's Office of Space Science by Jet Propulsion Laboratory, California Institute of Technology.
Date 06/22/1979
NASA Center Jet Propulsion Laboratory
Neptune and Tritron
Title Neptune and Tritron
Full Description This image was returned by the Voyager 2 spacecraft on July 3, 1989, when it was 76 million kilometers (47 million miles) from Neptune. The planet and its largest satellite, Triton, are captured in the field of view of Voyager's narrow-angle camera through violet, clear and orange filters. Triton appears in the lower right corner at about 5 o'clock relative to Neptune. Measurements from Voyager images show Triton to be between 1,400 and 1,800 kilometers (about 870 to 1,100 miles) in radius with a surface that is about as bright as freshly fallen snow. Because Triton is barely resolved in current narrow-angle images, it is too early to see features on its surface. Scientists believe Triton has at least a small atmosphere of methane and possibly other gases. During its closest approach to Triton on August 25, 1989, Voyager provided high-resolution views of the moon's icy surface and reveal whether Triton's atmosphere has clouds. JPL manages the Voyager Project for NASA's Office of Space Science and Applications, Washington, DC.
Date 07/27/1989
NASA Center Jet Propulsion Laboratory
Approaching Jupiter
Title Approaching Jupiter
Explanation In 1979 the Voyager 1 spacecraft [ http://vraptor.jpl.nasa.gov/voyager/voyager_fs.html ] compiled this view as it approached the gas giant Jupiter [ http://www.seds.org/nineplanets/nineplanets/jupiter.html ]. Snapping a picture every time the Great Red Spot [ http://antwrp.gsfc.nasa.gov/apod/ap960827.html ] was properly aligned, the above time-lapse sequence [ http://photojournal.jpl.nasa.gov/cgi-bin/PIAGenCatalogPage.pl?PIA02259 ] shows not only spot [ http://www.gfdl.gov/~gw/ ] rotation but also the swirling of neighboring clouds [ http://antwrp.gsfc.nasa.gov/apod/ap000429.html ]. Since Jupiter [ http://www.solarviews.com/eng/jupiter.htm ] takes about 10 hours to rotate, this short sequence actually covers several days. Voyager 1 shot past Jupiter [ http://antwrp.gsfc.nasa.gov/apod/jupiter.html ] rapidly taking pictures on which many discoveries [ http://www.solarviews.com/eng/vgrjup.htm ] would be made, including previously unknown cloud patterns [ http://antwrp.gsfc.nasa.gov/apod/ap970920.html ], rings [ http://antwrp.gsfc.nasa.gov/apod/ap980916.html ], moons [ http://www.seds.org/nineplanets/nineplanets/amalthea.html#adrastea ], and active volcanoes [ http://antwrp.gsfc.nasa.gov/apod/ap960805.html ] on Jupiter's moon Io [ http://www.jpl.nasa.gov/galileo/moons/io.html ]. Voyager is moving so fast that it will one day leave [ http://antwrp.gsfc.nasa.gov/apod/ap980620.html ] our Solar System [ http://www.seds.org/nineplanets/nineplanets/overview.html ].
5 Million Miles From Io
Title 5 Million Miles From Io
Explanation Twenty years ago this month, NASA's Voyager 1 spacecraft [ http://vraptor.jpl.nasa.gov/voyager/sc_instr/I_spacecraft.html ] flew past Jupiter and its moons. This sharp picture of moon Io [ http://www.seds.org/nineplanets/nineplanets/io.html ] against a background of gas giant Jupiter's [ http://www.seds.org/nineplanets/nineplanets/jupiter.html ] diffuse swirling cloud bands was recorded by Voyager's camera from [ http://antwrp.gsfc.nasa.gov/apod/ap980919.html ] a distance of about 5 million miles. Even this early image [ http://photojournal.jpl.nasa.gov/ cgi-bin/PIAGenCatalogPage.pl?PIA00378 ] shows curious round features on Io's surface with dark centers and bright rims more than 40 miles across. Now known to be volcanic in origin [ http://photojournal.jpl.nasa.gov/ cgi-bin/PIAGenCatalogPage.pl?PIA00744 ], these features were then thought likely to be impact craters, commonly seen on rocky bodies throughout the Solar System [ http://antwrp.gsfc.nasa.gov/apod/ap980517.html ]. But as Voyager [ http://vraptor.jpl.nasa.gov/voyager/record.html ] continued to approach Io, close-up pictures revealed a bizarre world devoid of impact craters, frequently resurfaced by [ http://antwrp.gsfc.nasa.gov/apod/ap970321.html ] volcanic activity. In fact, Io's volcanism is [ http://volcano.und.nodak.edu/vwdocs/planet_volcano/Io/Overview.html ] so intense that subsequent Voyager images produced an astounding discovery - the first observed [ http://photojournal.jpl.nasa.gov/ cgi-bin/PIAGenCatalogPage.pl?PIA00379 ] extraterrestrial volcanic eruptions.
Titan's thick haze layer
PIA02238
Saturn
Imaging Science Subsystem - …
Title Titan's thick haze layer
Original Caption Released with Image Titan's thick haze layer is shown in this enhanced Voyager 1 image taken Nov. 12, 1980 at a distance of 435,000 kilometers (270,000 miles). Voyager images of Saturn's largest moon show Titan completely enveloped by haze that merges with a darker "hood" or cloud layer over the north pole. Such a mantle is not present at the south pole. At Voyager's closest approach to Titan on Nov. 11, 1980, spacecraft instruments found that the moon has a substantial atmosphere, far denser than that of Mars and possibly denser than Earth's. The Voyager Project is managed for NASA by the Jet Propulsion Laboratory, Pasadena, Calif.
Surface Changes on Io
PIA00713
Jupiter
Solid-State Imaging
Title Surface Changes on Io
Original Caption Released with Image Four views of an unnamed volcanic center (latitude 11, longitude 337) on Jupiter's moon Io showing changes seen on June 27th, 1996 by the Galileo spacecraft as compared to views seen by the Voyager spacecraft during the 1979 flybys. Clockwise from upper left is a Voyager 1 high resolution image, a Voyager 1 color image, a Galileo color image, and a Voyager 2 color image. North is to the top of the picture. This area has experienced many changes in appearance since Voyager images were acquired, including new dark and bright deposits. This region was a hot spot during Voyager 1. Images are 762 km wide. The Jet Propulsion Laboratory, Pasadena, CA manages the mission for NASA's Office of Space Science, Washington, DC. This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at URL http://galileo.jpl.nasa.gov. Background information and educational context for the images can be found at URL http://www.jpl.nasa.gov/galileo/sepo
Io
PIA01362
Jupiter
Imaging Science Subsystem - …
Title Io
Original Caption Released with Image Voyager 2 took this picture of Io on the evening of July 9, 1979, from a range of 1.2 million kilometers. On the limb of Io are two blue volcanic eruption plumes about 100 kilometers high. These two plumes were first seen by Voyager 1 in March, 1979, and are designated Plume 5 (upper) and Plume 6 (lower). They have apparently been erupting for a period of at least 4 months and probably longer. A total of six plumes have been seen by Voyager 2, all of which were first seen by Voyager 1. The largest plume viewed by Voyager 1 (Plume 1) is no longer erupting. Plume 4 was not viewed on the edge of the moon's disc by Voyager 2 and therefore it is not known whether or not it is still erupting. This picture is one of a series taken to monitor the eruptions over a 6 hour period.
Crescent Earth and Moon
PIA00013
Sol (our sun)
Title Crescent Earth and Moon
Original Caption Released with Image This picture of a crescent-shaped Earth and Moon -- the first of its kind ever taken by a spacecraft -- was recorded Sept. 18, 1977, by NASA's Voyager 1 when it was 7.25 million miles (11.66 million kilometers) from Earth. The Moon is at the top of the picture and beyond the Earth as viewed by Voyager. In the picture are eastern Asia, the western Pacific Ocean and part of the Arctic. Voyager 1 was directly above Mt. Everest (on the night side of the planet at 25 degrees north latitude) when the picture was taken. The photo was made from three images taken through color filters, then processed by the Jet Propulsion Laboratory's Image Processing Lab. Because the Earth is many times brighter than the Moon, the Moon was artificially brightened by a factor of three relative to the Earth by computer enhancement so that both bodies would show clearly in the print. Voyager 2 was launched Aug. 20, 1977, followed by Voyager 1 on Sept. 5, 1977, en route to encounters at Jupiter in 1979 and Saturn in 1980 and 1981. JPL manages the Voyager mission for NASA's Office of Space Science.
Crescent-shaped Earth and Mo …
PIA01967
Sol (our sun)
Imaging Science Subsystem - …
Title Crescent-shaped Earth and Moon
Original Caption Released with Image This picture of a crescent-shaped Earth and Moon -- the first of its kind ever taken by a spacecraft -- was recorded Sept. 18, 1977, by NASA's Voyager 1 when it was 7.25 million miles (11.66 million kilometers) from Earth. The Moon is at the top of the picture and beyond the Earth as viewed by Voyager. In the picture are eastern Asia, the western Pacific Ocean and part of the Arctic. Voyager 1 was directly above Mt. Everest (on the night side of the planet at 25 degrees north latitude) when the picture was taken. The photo was made from three images taken through color filters, then processed by the Jet Propulsion Laboratory's Image Processing Lab. Because the Earth is many times brighter than the Moon, the Moon was artificially brightened by a factor of three relative to the Earth by computer enhancement so that both bodies would show clearly in the print. Voyager 2 was launched Aug. 20, 1977, followed by Voyager 1 on Sept. 5, 1977, en route to encounters at Jupiter in 1979 and Saturn in 1980 and 1981. JPL manages the Voyager mission for NASA.
Neptune - partial rings
Title Neptune - partial rings
Description One of two new ring arcs, or partial rings, discovered today by NASA's Voyager 2 spacecraft, is faintly visible here just outside the orbit of the Neptunian moon 1989N4, also discovered by Voyager 2 earlier this month. The 155 second exposure taken by Voyager's narrow-angle camera shows the glare of an overexposed Neptune to the right of the moon and ring arc. The two bright streaks below the moon and ring arc are stars. The ring arc is approximately 50,000 kilometers (or 30,000 miles) long. (The second ring arc, not apparent here, is approximately 10,000 kilometers (6,000 miles) long and is associated with the moon 1989N3.) The ring arc, along with 1989N4, orbits about 62,000 kilometers (38,000 miles) from the planet's center, or about 37,000 kilometers (23,000 miles) from the planet's cloud tops. Astronomers have long suspected the existence of such an irregular ring system around Neptune. Data from repeated ground based observations hinted at the existence of irregular strands of partial rings orbiting Neptune. Voyager's photographs of the ring arcs are the first photographic evidence that such a ring system exists. Voyager scientists said the ring arcs may be comprised of debris associated with the nearby moons, or may be the remnants of moons that have been torn apart or ground down through collisions. Close-up studies of the ring arcs by Voyager 2 in coming days should help determine their composition. The Voyager mission is conducted by the Jet Propulsion Laboratory for NASA's Office of Space Science and Applications.
Date 08.11.1989
Changes around Marduk betwee …
PIA01066
Jupiter
Solid-State Imaging
Title Changes around Marduk between Voyager, and Galileo's first two orbits
Original Caption Released with Image Detail of changes around Marduk on Jupiter's moon Io as seen by Voyager 1 in 1979 (upper left) and NASA's Galileo spacecraft between June 1996 (lower left) and September 1996 (upper and lower right). The new dark red linear feature extending southeast from Marduk is about 250 kilometers long and may be a volcanic fissure. The flow-like feature at the bottom of the images is distinct in the Voyager data, indistinct in the June Galileo data, but distinct again in the September Galileo data. This may be due to the different lighting conditions rather than volcanic activity. The Voyager 1 image uses the green, blue, and violet filters. The upper right September 1996 image from Galileo uses the violet and green filters of the solid state imaging system aboard the Galileo spacecraft and a synthetic blue to simulate Voyager colors. The lower June and September, 1996 Galileo images use the imaging system's near-infrared (756 nm), green, and violet filters. North is to the top in all frames. The Jet Propulsion Laboratory, Pasadena, CA manages the Galileo mission for NASA's Office of Space Science, Washington, DC. JPL is an operating division of California Institute of Technology (Caltech). This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at URL http://galileo.jpl.nasa.gov. Background information and educational context for the images can be found at URL http://www.jpl.nasa.gov/galileo/sepo
Miranda as seen by Voyager 2
Title Miranda as seen by Voyager 2
Full Description Flying by in early 1986, Voyager 2 captured this picture of Miranda, which enabled scientists to study this moon of Uranus in much greater detail than ever before. Discovered in 1948 by Gerard Peter Kuiper, Miranda is named for the daughter of the wily Prospero in Shakespeare's "The Tempest." It is the eleventh known satellite of Uranus and the innermost large moon of Uranus It was necessary that Voyager 2 passed by Miranda, not for scientific reasons, but simply for the gravity assist it needed to go on to Neptune. Due to the position of the entire Solar System, Miranda provided the energy to throw Voyager 2 to Neptune. Before Voyager, Miranda was largely ignored as it is not the largest moon and did not seem to have any other outstanding qualities. Fortunately, however, Voyager passed close enough to Miranda to provide scientists with fascinating photographs that captivated astronomers. About half ice and half rock, Miranda's surface has terraced layers that indicate both older and new surfaces coexisting. Since the mixing of ancient and recent surfaces is rare in planetary geology, scientists have postulated two explanations for the different ages of the numerous valleys and cliffs on Miranda. One theory is that Miranda could have shattered as many as five times and was then reassembled. Another hypothesis is that partly melted ice upwells forced new surfaces to emerge.
Date 01/25/1986
NASA Center Jet Propulsion Laboratory
Closeup of an Io Volcano
Title Closeup of an Io Volcano
Explanation In 1979, one of NASA's Voyager [ http://nssdc.gsfc.nasa.gov/planetary/voyager.html ] spacecraft made a spectacular and unexpected discovery. Io, [ http://antwrp.gsfc.nasa.gov/apod/ap950803.html ] the innermost Galilean moon of Jupiter, was covered with volcanoes and some of them were erupting! In all, Voyager 1 observed nine volcanic eruptions during its encounter with the moon. When Voyager 2 flew past four months later it was able to confirm that at least six of them were still erupting. This Voyager image of Ra Patera, a large shield volcano, shows colorful flows up to about 200 miles long emanating from the dark central volcanic vent. For more information about volcanism on Io, see Calvin J. Hamilton's Io page [ http://www.c3.lanl.gov/~cjhamil/SolarSystem/io.html ] Tomorrow's picture: Geysers on Triton
Saturn's Moon Tethys
Title Saturn's Moon Tethys
Explanation Tethys [ http://www.c3.lanl.gov/~cjhamil/SolarSystem/tethys.html ] is one of the larger and closer moons of Saturn [ http://antwrp.gsfc.nasa.gov/apod/ap951018.html ]. It was visited by both Voyager spacecraft - Voyager 1 in November 1980 and by Voyager 2 in August 1981. Tethys [ http://seds.lpl.arizona.edu/nineplanets/nineplanets/tethys.html ] is now known to be composed almost completely of water ice. Tethys shows a large impact crater that nearly circles the planet. That the impact that caused this crater did not disrupt the moon is taken as evidence that Tethys was not completely frozen in its past. Tethys has two moons named Telesto [ http://seds.lpl.arizona.edu/nineplanets/nineplanets/tethys.html#telesto ] and Calypso [ http://seds.lpl.arizona.edu/nineplanets/nineplanets/tethys.html#calypso ] that orbit just ahead of it and behind it. Tethys was originally discovered in 1684 by Giovanni Cassini.
A79-7076
Photographer: JPL P-21741 BW …
3/2/79
Description Photographer: JPL P-21741 BW Range: 2.6 million kilometers (1.6 million miles) This picture of Io, taken by Voyager 1, shows the region of the Jovian moon which will be monitored for volcanic eruptions by Voyager 2 during the "Io movie" sequence. The white and orange patches probably are deposits of sulphur compounds and other volcanic materials. The Voyager 2 pictures of this region will be much more detailed.
Date 3/2/79
AC79-7076
Photographer: JPL P-21741 C …
3/2/79
Description Photographer: JPL P-21741 C Range: 2.6 million kilometers (1.6 million miles) This picture of Io, taken by Voyager 1, shows the region of the Jovian moon which will be monitored for volcanic eruptions by Voyager 2 during the "Io movie" sequence. The white and orange patches probably are deposits of sulphur compounds and other volcanic materials. The Voyager 2 pictures of this region will be much more detailed.
Date 3/2/79
Titan's thick haze layer
Title Titan's thick haze layer
Description Titan's thick haze layer is shown in this enhanced Voyager 1 image taken Nov. 12, 1980 at a distance of 435,000 kilometers (270,000 miles). Voyager images of Saturn's largest moon show Titan completely enveloped by haze that merges with a darker "hood" or cloud layer over the north pole. Such a mantle is not present at the south pole. At Voyager's closest approach to Titan on Nov. 11, 1980, spacecraft instruments found that the moon has a substantial atmosphere, far denser than that of Mars and possibly denser than Earth's. The Voyager Project is managed for NASA by the Jet Propulsion Laboratory, Pasadena, Calif.
Date 11.14.1980
Neptune and Triton
PIA01491
Sol (our sun)
Title Neptune and Triton
Original Caption Released with Image This image was returned by the Voyager 2 spacecraft on July 3, 1989, when it was 76 million kilometers (47 million miles) from Neptune. The planet and its largest satellite, Triton, are captured in the field of view of Voyager's narrow-angle camera through violet, clear and orange filters. Triton appears in the lower right corner at about 5 o'clock relative to Neptune. Recent measurements from Voyager images show Triton to be between 1,400 and 1,800 kilometers (about 870 to 1,100 miles) in radius with a surface that is about as bright as freshly fallen snow. Because Triton is barely resolved in current narrow-angle images, it is too early to see features on its surface. Scientists believe Triton has at least a small atmosphere of methane and possibly other gases. During its closest approach to Triton on August 25, 1989, Voyager should provide high-resolution views of the moon's icy surface and reveal whether Triton's atmosphere has clouds. JPL manages the Voyager Project for NASA's Office of Space Science and Applications.
Rings of Uranus at 1.44 kilo …
PIA01350
Uranus
Imaging Science Subsystem - …
Title Rings of Uranus at 1.44 kilometers
Original Caption Released with Image The outer rings of Uranus are visible in this Voyager 2 image, obtained Jan. 23, 1986, from a distance of 1.44 million kilometers (890,000 miles). The outermost and brightest ring, called epsilon, is visible along with the fainter and narrower delta and gamma rings (from left). This clear-filter, 15-second exposure was shuttered by Voyager's narrow-angle camera. The resolution of this image is about 15 km (9 mi). The epsilon ring is resolved into two bright components separated by a darker lane of material. Voyager scientists believe this is caused by a thinning of the ring material away from the edges of the ring. This image was part of a sequence of pictures designed to search for moons orbiting within the rings and responsible for their narrow appearance. One of two such "shepherd" moons discovered by Voyager -- found Jan. 20 and designated 1986U7 -- is visible as the elongated bright feature midway between the epsilon and delta rings. The moon appears elongated because its orbital motion smeared its image during the long exposure. The Voyager project is managed for NASA by the Jet Propulsion Laboratory.
Titania - Highest Resolution …
PIA00039
Uranus
Imaging Science Subsystem - …
Title Titania - Highest Resolution Voyager Picture
Original Caption Released with Image This is the highest-resolution picture of Titania returned by Voyager 2. The picture is a composite of two images taken Jan. 24, 1986, through the clear filter of Voyager's narrow-angle camera. At the time, the spacecraft was 369,000 kilometers (229,000 miles) from the Uranian moon, the resolution was 13 km (8 mi). Titania is the largest satellite of Uranus, with a diameter of a little more than 1,600 km (1,000 mi). Abundant impact craters of many sizes pockmark the ancient surface. The most prominent features are fault valleys that stretch across Titania. They are up to 1,500 km (nearly 1,000 mi) long and as much as 75 km (45 mi) wide. In valleys seen at right-center, the sunward-facing walls are very bright. While this is due partly to the lighting angle, the brightness also indicates the presence of a lighter material, possibly young frost deposits. An impact crater more than 200 km (125 mi) in diameter distinguishes the very bottom of the disk, the crater is cut by a younger fault valley more than 100 km (60 mi) wide. An even larger impact crater, perhaps 300 km (180 mi) across, is visible at top. The Voyager project is managed for NASA by the Jet Propulsion Laboratory.
Jupiter - Io In Front of Jup …
PIA00371
Sol (our sun)
Imaging Science Subsystem - …
Title Jupiter - Io In Front of Jupiter's Turbulent Clouds
Original Caption Released with Image This photograph of the southern hemisphere of Jupiter was obtained by Voyager 2 on June 25, 1979, at a distance of 12 million kilometers (8 million miles). The Voyager spacecraft is rapidly nearing the giant planet, with closest approach to occur at 4:23 pm PDT on July 9. Seen in front of the turbulent clouds of the planet is Io, the innermost of the large Galilean satellites of Jupiter. Io is the size of our moon. Voyager discovered in early March that Io is the most volcanically active planetary body known in the solar system, with continuous eruptions much larger than any that take place on the Earth. The red, orange, and yellow colors of Io are thought to be deposits of sulfur and sulfur compounds produced in these eruptions. The smallest features in either Jupiter or Io that can be distinguished in this picture are about 200 kilometers (125 miles) across, this resolution, it is not yet possible to identify individual volcanic eruptions. Monitoring of the erupture activity of Io by Voyager 2 will begin about July 5 and will extend past the encounter July 9. The Voyager Project is managed for NASA by the Jet Propulsion Laboratory.
Rhea: Saturn's Second Larges …
Title Rhea: Saturn's Second Largest Moon
Explanation Rhea [ http://seds.lpl.arizona.edu/nineplanets/nineplanets/rhea.html ] is the second largest moon of Saturn [ http://antwrp.gsfc.nasa.gov/apod/ap950705.html ], behind Titan [ http://antwrp.gsfc.nasa.gov/apod/ap950923.html ], and the largest without an atmosphere. It is composed mostly of water ice, but has a small rocky core. Rhea [ http://www.c3.lanl.gov/~cjhamil/SolarSystem/rhea.html ]'s rotation and orbit are locked together (just like Earth's Moon) so that one side always faces Saturn. A consequence of this is that one side always leads the other. Rhea's leading surface is much more heavily cratered than its trailing surface. The above photograph was taken with the Voyager 1 spacecraft in 1980.
Neptune's Moon Proteus
Title Neptune's Moon Proteus
Explanation Proteus is the second largest moon of Neptune [ http://antwrp.gsfc.nasa.gov/apod/ap950817.html ] behind the mysterious Triton [ http://antwrp.gsfc.nasa.gov/apod/ap950805.html ]. Proteus was discovered only in 1982 by the Voyager 2 spacecraft. This is unusual since Neptune has a smaller moon - Nereid - which was discovered 33 years earlier from Earth. The reason Proteus [ http://seds.lpl.arizona.edu/nineplanets/nineplanets/proteus.html ] was not discovered sooner is that its surface is very dark and it orbits much closer to Neptune. Proteus [ http://www.c3.lanl.gov/~cjhamil/SolarSystem/proteus.html ] has an odd box-like shape and were it even slightly more massive, its own gravity would cause it to reform itself into a sphere.
Unusual Volcanic Pyroclastic …
PIA00711
Jupiter
Solid-State Imaging
Title Unusual Volcanic Pyroclastic Deposits on Io
Original Caption Released with Image Four views of Euboea Fluctus on Jupiter's moon Io showing changes seen on June 27th, 1996 by the Galileo spacecraft as compared to views seen by the Voyager spacecraft during the 1979 flybys. Clockwise from upper left is a Voyager 1 high resolution image, a Galileo enhanced color image, a Galileo image with simulated Voyager colors, and a Voyager 2 color image. North is to the top of the picture. The Galileo images show new diffuse deposits which have an unusual morphology for plume deposits. A diffuse yellowish deposit with a radius of 285 km extends to the northwest, whereas an intense reddish deposit marks a curving fallout margin to the southeast. This morphology may have resulted from the presence of a topographic obstruction to southeast of the vent. The Jet Propulsion Laboratory, Pasadena, CA manages the mission for NASA's Office of Space Science, Washington, DC. This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at URL http://galileo.jpl.nasa.gov. Background information and educational context for the images can be found at URL http://www.jpl.nasa.gov/galileo/sepo
Tethys
PIA02276
Saturn
Imaging Science Subsystem - …
Title Tethys
Original Caption Released with Image The Saturn satellite Tethys was viewed by Voyager 2 on Aug. 25 from a distance of 1 million kilometers (620,000 mi.). Evident on the surface of this icy moon is an enormous impact crater almost 400 km. (250 mi.) in diameter and about 15 km. (10 mi.) deep. Tethys itself is only 1,050 km. (650 mi.) in diameter. The crater contains a central peak about as high as the crater is deep, it is the result of rebound after the impact. Tethys resembles its sister satellite Mimas, seen closeup by Voyager 1 last fall. That body has a crater 130 km. (80 mi.) in diameter. The Tethys crater, which is so large that Mimas would fit inside, is on the opposite side of the great rift valley observed by Voyager 1. Many other, smaller craters pock-mark the surface here. The Voyager project is managed for NASA by the Jet Propulsion Laboratory, Pasadena, Calif.
Pele Comparisons Since 1979
PIA00717
Jupiter
Solid-State Imaging
Title Pele Comparisons Since 1979
Original Caption Released with Image These frames detail the changes around Pele on Jupiter's moon Io, as seen by Voyager 1 (left), Voyager 2 (middle), and Galileo (right). The Voyager frames were taken in 1979 when the two spacecraft flew past Jupiter and it's moon Io. The Galileo view was obtained in June, 1996. Note the changes in the shape of the deposits further from the vent while the radial dark features closer to the vent show little change. The Voyager images use orange, blue, and violet filters. The Galileo image uses the green and violet filters of the Solid State Imaging system aboard the Galileo spacecraft and a synthetic blue. All three images are in a simple cylindrical projection and are approximately 1700 km x 1500 km. North is to the top. The Jet Propulsion Laboratory, Pasadena, CA manages the mission for NASA'is Office of Space Science, Washington, DC. This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at URL http://galileo.jpl.nasa.gov. Background information and educational context for the images can be found at URL http://www.jpl.nasa.gov/galileo/sepo
A89-7015
Photographer : JPL Range : 4 …
8/21/89
Description Photographer : JPL Range : 4.8 million km. ( 3 million miles ) P-34648 This Voyager 2, sixty-one second exposure, shot through clear filters, of Neptunes rings. The Voyager cameras were programmed to make a systematic search of the entire ring system for new material. The previously ring arc is visible as a long bright streak at the bottom of the image. Extening beyond the bright arc is a much fainter component which follows the arc in its orbit. this faint material was also visible leading the ring arc and, in total, covers at least half of the orbit before it becomes too faint to identify. Also visible in this image, is a continuous ring of faint material previously identified as a possible ring arc by Voyager. this continuous ring is located just outside the orbit of the moon 1989N3, which was also discovered by Voyager. This moon is visible as a streak in the lower left. the smear of 1989N3 is due to its own orbital motion during the exposure. Extreme computer processing of this image was made to enhance the extremely faint features of Neptunes moon system. the dark area surrounding the moon as well as the bright corners are due to this special processing.
Date 8/21/89
Description Shepherd Satellites
Full Description This image taken by the Voyager 2 spacecraft of Saturn's A-ring shows the thin F-ring bracketed by its two shepherding satellites. Because the inner moon revolves around the planet slightly faster than the outer one, the satellites lap each other every 25 days. This picture was taken on August 15, 1981, when Voyager 2 was 10.5 million kilometers (6.6 million miles) from Saturn. At that instant, the shepherds were less than 1,800 kilometers (1,100 miles) apart. For higher resolution, click here.
Description Shepherd Satellites
Full Description This image taken by the Voyager 2 spacecraft of Saturn's A-ring shows the thin F-ring bracketed by its two shepherding satellites. Because the inner moon revolves around the planet slightly faster than the outer one, the satellites lap each other every 25 days. This picture was taken on August 15, 1981, when Voyager 2 was 10.5 million kilometers (6.6 million miles) from Saturn. At that instant, the shepherds were less than 1,800 kilometers (1,100 miles) apart. For higher resolution, click here.
Description Shepherd Satellites
Full Description This image taken by the Voyager 2 spacecraft of Saturn's A-ring shows the thin F-ring bracketed by its two shepherding satellites. Because the inner moon revolves around the planet slightly faster than the outer one, the satellites lap each other every 25 days. This picture was taken on August 15, 1981, when Voyager 2 was 10.5 million kilometers (6.6 million miles) from Saturn. At that instant, the shepherds were less than 1,800 kilometers (1,100 miles) apart. For higher resolution, click here.
Jupiter's Moon Callisto
title Jupiter's Moon Callisto
date 03.06.1979
description Voyager 1 image of Jupiter's moon Callisto from a distance of 350,000 km. Callisto is about 4,800 km in diameter (about the size of Mercury). Features as small as 7 km across can be seen in this image. The large "bulls-eye" at the top of the image is believed to be an impact basin formed early in Callisto's history. The bright center of the basin is about 600 km across and the outer ring is about 2600 km across. (Voyager 1, P-21287) *Image Credit*: NASA
Saturn's Moon Tethys
Title Saturn's Moon Tethys
Explanation Tethys is one of the larger and closer moons of Saturn. It was visited by both Voyager spacecraft [ http://voyager.jpl.nasa.gov/ ] - Voyager 1 in November 1980 and by Voyager [ http://antwrp.gsfc.nasa.gov/apod/ap960629.html ] 2 in August 1981. Tethys [ http://www.nineplanets.org/tethys.html ] is now known to be composed almost completely of water ice. Tethys [ http://www.solarviews.com/eng/tethys.htm ] shows a large impact crater [ http://antwrp.gsfc.nasa.gov/apod/ap990711.html ] that nearly circles the planet. That the impact that caused this crater did not disrupt the moon is taken as evidence that Tethys [ http://sse.jpl.nasa.gov/features/planets/saturn/tethys.html ] was not completely frozen in its past. Two smaller moons, Telesto [ http://www.nineplanets.org/tethys.html#telesto ] and Calypso [ http://www.nineplanets.org/tethys.html#calypso ], orbit Saturn [ http://antwrp.gsfc.nasa.gov/apod/saturn.html ] just ahead of and behind Tethys. Giovanni Cassini [ http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Cassini.html ] discovered Tethys in 1684. In 1997, NASA [ http://www.nasa.gov/ ] launched [ http://antwrp.gsfc.nasa.gov/apod/ap971016.html ] a spacecraft named Cassini [ http://saturn.jpl.nasa.gov/cassini/english/spacecraft/ ] to Saturn that will arrive in 2004.
Uranus' largest moon Oberon
PIA01352
Uranus
Imaging Science Subsystem - …
Title Uranus' largest moon Oberon
Original Caption Released with Image Uranus' outermost and largest moon, Oberon, is seen in this Voyager 2 image, obtained Jan. 22, 1986, from a distance of 2.77 million kilometers (1.72 million miles). The clear-filter image, shuttered by Voyager's narrow-angle camera, shows that Oberon displays several distinct highly reflective (high-albedo) patches with low-albedo centers. Some of the bright patches are suggestive of radial patterns that could represent impact craters excavated from an icy surface. On average, Oberon reflects about 20 percent of the incident sunlight. The moon is about 1,600 km (1,000 mi) in diameter, resolution of this image is 51 km (32 mi). It was taken two days before Voyager's closest approach to Oberon, at which point the spacecraft will be about 471,000 km (293,000 mi) away. The Voyager project is managed for NASA by the Jet Propulsion Laboratory.
Uranus moon - 1985U1
PIA01357
Unknown target/parent relati …
Imaging Science Subsystem - …
Title Uranus moon - 1985U1
Original Caption Released with Image Several craters are seen on the surface of 1985U1, one of several small moons of Uranus discovered by Voyager 2. The spacecraft acquired this single image -- the only close-up it obtained of any of the new moons -- on Jan. 24, 1986. At the time, Voyager was at a distance of about 500,000 kilometers (300,000 miles) from 1985U1, yielding a resolution of about 10 km (6 mi) in this clear-filter, narrow-angle image. The moon was found Dec. 3O, 1985, it was the first and largest of nearly a dozen satellites discovered by the spacecraft cameras. This image shows 1985U1 to be a dark, nearly spherical object, with a diameter of about 150 km (90 mi), the dark surface reflects only 7 percent of the incident light. The picture was inserted into the Voyager encounter sequence late in its development. This image has had a complex history, having been recorded on the spacecraft tape recorder and first played back during the late afternoon of Jan. 24. An antenna-pointing problem at one of the Australian tracking stations led to loss of the data, so the image had to be transmitted a second time. It was successfully received shortly before 6 p.m. PST Jan. 26. The Voyager project is managed for NASA by the Jet Propulsion Laboratory.
Dione - circular impact crat …
PIA02265
Saturn
Imaging Science Subsystem - …
Title Dione - circular impact craters
Original Caption Released with Image Circular impact craters up to about 100 kilometers (60 miles) in diameter are seen in this view of Saturn's icy moon Dione. The image was taken by Voyager 1 from a range of 790,000 kilometers (500,000 miles) at 2:20 a.m. PST on November 12. Bright, wispy markings form complex arcuate patterns on the surface. These markings are slightly brighter than the brightest features seen by Voyager on Jupiter's moons, suggesting that they are surface frost deposits. The patterns of the bright bands hint at an origin due to internal geologic activity, but the resolution is not yet sufficient to prove or disprove this idea. Dione's diameter is only 1100 kilometers (700 miles), much smaller than any of Jupiter's icy moons. It thus belongs to a class of small, icy objects never observed before the Voyager I Saturn encounter. The view here is of the face which trails in orbit. The Voyager Project is managed by the Jet Propulsion Laboratory for NASA.
Callisto From 7,000,000 kilo …
PIA01511
Jupiter
Imaging Science Subsystem - …
Title Callisto From 7,000,000 kilometers
Original Caption Released with Image This Voyager 1 picture of Callisto, the outermost Galilean satellite, was taken February 28 from a distance of about 5 million miles (7 million kilometers). Callisto is the darkest of the Galilean satellites but is still nearly twice as bright as the Earth's Moon. The surface shows a mottled appearance consisting of bright and dark patches. The bright spots remind scientists of rayed or bright haloed craters, similar to those seen on the Earth's Moon. The Galilean satellites all show the same face to Jupiter -- just as the Earth's Moon always shows us the same face. In this photo we see the face of Callisto that always faces Jupiter. JPL manages and controls the Voyager Project for NASA's Office of Space Science.
Saturn's moon Tethys
PIA01399
Saturn
Imaging Science Subsystem - …
Title Saturn's moon Tethys
Original Caption Released with Image Voyager 2 obtained this view of Saturn's moon Tethys on Aug.25 from a distance of 540,000 kilometers (335,000 miles). It shows the numerous impact craters and fault valleys of a very ancient surface. Tethys itself is 1,090 km. (675 mi.) in diameter, and the great chasm seen at the top of this image extends 1,700 km. (1,050 mi.), halfway across the satellite. The largest impact crater visible here is 90 km. (55 mi.) in diameter. The Voyager project is managed for NASA by the Jet Propulsion Laboratory, Pasadena, Calif.
Cratered surface of Tethys
PIA01974
Saturn
Imaging Science Subsystem - …
Title Cratered surface of Tethys
Original Caption Released with Image The heavily cratered surface of Tethys was photographed at l:35 a.m. PST on November 12 from a distance of l.2 million kilometers (750,000 miles) by Voyager l. This face of Tethys looks toward Saturn and shows a large valley about 750 kilometers long and 60 kilometers wide (500 by 40 miles). The craters are probably the result of impacts and the valley appears to be a large fracture of unknown origin. The diameter of Tethys is about 1000 kilometers (600 miles) or slightly less than l/3 the size of our Moon. The smallest feature visible on this picture is about 24 kilometers across. The Voyager Project is managed by the Jet Propulsion Laboratory for NASA.
Saturn's moon Mimas
PIA01968
Saturn
Imaging Science Subsystem - …
Title Saturn's moon Mimas
Original Caption Released with Image The cratered surface Saturn's moon Mimas is seen in this image taken by Voyager 1 on Nov. 12, 1980 from a range of 425,000 kilometers (264,000 miles). Impact craters made by the infall of cosmic debris are shown, the largest is more than 100 kilometers (62 miles) in diameter and displays a prominent central peak. The smaller craters are abundant and indicate an ancient age for Mima's surface. The Voyager Project is managed for NASA by the Jet Propulsion Laboratory, Pasadena, Calif.
Titan Haze
PIA01533
Saturn
Title Titan Haze
Original Caption Released with Image Layers of haze covering Saturn's satellite Titan are seen in this image taken by Voyager 1 on Nov. 12, 1980 at a range of 22,000 kilometers (13,700 miles). The colors are false and are used to show details of the haze that covers Titan. The upper level of the thick aerosol above the satellite's limb appears orange. The divisions in the haze occur at altitudes of 200, 375 and 500 kilometers (124, 233 and 310 miles) above the limb of the moon. JPL manages the Voyager project for NASA's Office of Space Science.
The Saturnian moon Dione
PIA01366
Saturn
Imaging Science Subsystem - …
Title The Saturnian moon Dione
Original Caption Released with Image Many large impact craters are seen in this view of the Saturnian moon Dione taken by NASA's Voyager 1 on Nov. 12, 1980 from a range of about 240,000 kilometers (149,000 miles). Bright radiating patterns probably represent debris rays thrown out of impact craters, other bright areas may be topographic ridges and valleys. Also visible are irregular valleys that represent old fault troughs degraded by impacts. The center of the frame is at 26 degrees south latitude on the Saturn-facing hemisphere. The Voyager Project is managed for NASA by the Jet Propulsion Laboratory, Pasadena, Calif.
South Polar Region of Io
PIA01485
Jupiter
Title South Polar Region of Io
Original Caption Released with Image The South Polar region of Jupiter's moon Io, seen by Voyager 1 as it passed beneath. JPL manages and controls the Voyager project for NASA's Office of Space Science.
Satellite 1989N2
PIA02206
Unknown target/parent relati …
Imaging Science Subsystem - …
Title Satellite 1989N2
Original Caption Released with Image These Voyager 2 images of satellite 1989N2 at a resolution of 4.2 kilometers (2.6 miles) per pixel reveal it to be and irregularly shaped, dark object. The satellite appears to have several craters 30 to 50 kilometers (18.5 to 31 miles) across. The irregular outline suggests that this moon has remained cold and rigid throughout much of its history. It is about 210 by 190 kilometers (130 by 118 miles), about half the size of 1989N1. It has a low albedo surface reflecting about 5 percent of the incident light. The Voyager Mission is conducted by JPL for NASA's Office of Space Science and Applications.
Voyager Views Titan's Haze
Title Voyager Views Titan's Haze
Explanation Launched in 1977, 25 years ago [ http://voyager.jpl.nasa.gov/science/ planetary.html ] today, the Voyager 1 [ http://nssdc.gsfc.nasa.gov/database/ MasterCatalog?sc=1977-084A ] spacecraft's historic tour of the outer Solar System took it past Saturn in late 1980. On November 12, 1980, Voyager 1 recorded this view [ http://photojournal.jpl.nasa.gov/cgi-bin/ PIAGenCatalogPage.pl?PIA01533 ] looking across the edge of Titan [ http://seds.lpl.arizona.edu/nineplanets/ nineplanets/titan.html ], Saturn's largest moon, from a distance of about 22,000 kilometers. Seen in false color, the moon's [ http://antwrp.gsfc.nasa.gov/apod/ap990207.html ] hazy atmosphere [ http://photojournal.jpl.nasa.gov/cgi-bin/ PIAGenCatalogPage.pl?PIA02238 ] appears orange with further layers of blue haze suspended above. Titan's mostly nitrogen atmosphere, denser than planet Earth's, also contains methane [ http://antwrp.gsfc.nasa.gov/apod/ap020212.html ] and is thought to be laced with more complex hydrogen and carbon compounds. The composition is likened [ http://www.lifeinuniverse.org/noflash/ Titanstate-06-02-01-01.html ] to Earth's atmosphere before life began. Spotted by Voyager [ http://voyager.jpl.nasa.gov/science/ saturn_titan.html ], the detached layers of haze hundreds of kilometers above the surface, along with details of Titan's atmospheric chemistry, have intrigued earth-bound researchers [ http://amesnews.arc.nasa.gov/releases/2002/ 02_93AR.html ] who have recently proposed a model that links seasonal variations in the haze, winds, and sunlight. Their model accounts for [ http://skyandtelescope.com/news/current/ article_716_1.asp ] the early Voyager observations as well as subsequent studies [ http://www.lpl.arizona.edu/~lemmon/titan/ ]. Further tests of the model are anticipated when the Huygens probe [ http://saturn.jpl.nasa.gov/cassini/english/spacecraft/ probe.shtml ], carried by the saturn-bound [ http://antwrp.gsfc.nasa.gov/apod/ap971016.html ] Cassini spacecraft, enters Titan's atmosphere in 2005.
1 2 3 4 … 11 12
1-50 of 583