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Search Results: All Fields similar to 'Pioneer' and When equal to '1979'
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Pioneer 11 Image of Saturn a
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| Title |
Pioneer 11 Image of Saturn and its Moon Titan |
| Full Description |
NASA's Pioneer 11 image of Saturn and its moon Titan at the upper left. The irregularities in ring silhouette and shadow are due to technical anomalies in the preliminary data later corrected. Looking at the rings from left to right, the ring area begins with the outer A ring, the Encke Division, the inner A Ring, Cassini Division, the B Ring, the C Ring, and the innermost area where the D Ring would be. The image was made by Pioneer Saturn on Wednesday, August 26, 1979, and received on Earth at 3:19 pm PDT. Pioneer was, at that time, 2,846,000 kilometers (1,768,422 miles) from Saturn. The image was produced by computer at the University of Arizona and managed by NASA's Ames Research Center. |
| Date |
08/31/1979 |
| NASA Center |
Ames Research Center |
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Pioneering Venus
| title |
Pioneering Venus |
| description |
An ultraviolet image of Venus' clouds as seen by the Pioneer Venus orbiter in 1979. Pioneer Venus used an orbiter and several small probes to study the planet from above and within the clouds. This image is from the orbiter. *Image Credit*: NASA |
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Space Pioneer Nancy Roman
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Space Pioneer Nancy Roman |
| date |
01.01.1962 |
| description |
Dr. Nancy Roman, one of the nations top scientists in the space program, is shown with a model of the Orbiting Solar Observatory (OSO). Roman received her PhD in astronomy from the University of Chicago in 1949. In 1959, Dr. Roman joined NASA and in 1960 served as Chief of the Astronomy and Relativity Programs in the Office of Space Science. She was very influential in creating satellites such as the Cosmic Background Explorer (COBE) and the Hubble Space Telescope (HST). She retired from NASA in 1979, but continued working as a contractor at the Goddard Space Flight Center. Throughout her career, Dr. Roman was a spokesperson and advocate of women in the sciences. *Image Credit*: NASA |
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Early Voyager 1 Images of Ju
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PIA00454
Sol (our sun)
Imaging Science Subsystem -
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| Title |
Early Voyager 1 Images of Jupiter |
| Original Caption Released with Image |
These Jupiter photographs are part of a set taken by Voyager 1 on December 10 and 11, 1978 from a distance of 83 million km (52 million miles) or more than half the distance from the Earth to the sun. At this range, Voyager 1 is able to record more detail on the giant planet than the very best ground-based telescopes. The highest resolution ever obtained on the Jovian disk was recorded by Pioneer 11 four years ago. Voyager, however, has longer focal-length optics than Pioneer, and while nearly three months from encounter (~ March 1979) was able to achieve higher resolution than that obtained by Pioneer only 24 hours from its encounter on 3 December 1974. Jupiter's colorful and turbulent atmosphere is evident in these photographs. The entire visible surface of the planet is made up of multiple layers of clouds, composed primarily of ammonia ice crystals colored by small amounts of materials of unknown composition. The Great Red Spot, seen to the lower left of 2 and lower right of 3, is now recovering from a period of relative inconspicuousness. An atmospheric system larger than the Earth and more than 100 years old, the Great Red Spot remains a mystery and a challenge to Voyager instruments. A bright convective cloud (center of and right of center in 4) displays a plume which has been swept westward (to the left) by local currents in the planet's equatorial wind system. Below and to the left and right of the Great Red Spot are a pair of white oval clouds, a third can be seen in 1. All three were formed almost 40 years ago and are the second oldest class of discrete features identified in the Jovian atmosphere. Each of the pictures was produced from blue, green, and orange originals in JPL's Image Processing Laboratory. |
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AC79-9114-33
Pioneer Saturn: Charlie Hall
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8/2/79
| Description |
Pioneer Saturn: Charlie Hall, project manager daily stand up meeting with Dr. Simpson at board |
| Date |
8/2/79 |
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AC79-9114-39
Pioneer Saturn: Charlie Hall
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8/2/79
| Description |
Pioneer Saturn: Charlie Hall, project manager daily stand up meeting |
| Date |
8/2/79 |
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AC79-9114-45
Pioneer Saturn: Charlie Hall
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8/2/79
| Description |
Pioneer Saturn: Charlie Hall, project manager daily stand up meeting |
| Date |
8/2/79 |
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AC79-9114-46
Pioneer Saturn: Charlie Hall
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8/2/79
| Description |
Pioneer Saturn: Charlie Hall, project manager daily stand up meeting shown are John Wolfe, Charlie Hall, Sy Syvertson and Richard Fimmel in bkgrd |
| Date |
8/2/79 |
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AC79-9114-70
Jules Bergman, ABC Science N
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8/2/79
| Description |
Jules Bergman, ABC Science Newscaster stands by a NASA Ames press room for the continuing information being returned by the Pioneer spacecraft during it's encounter with the planet Saturn and it's rings. |
| Date |
8/2/79 |
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Hubble Provides the First Im
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Hubble Provides the First Images of Saturn's Aurorae |
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Hubble Again Views Saturn's
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| Title |
Hubble Again Views Saturn's Rings Edge-On |
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NASA's Hubble Space Telescop
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| Title |
NASA's Hubble Space Telescope Produces Clear Color Photo of Jupiter |
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Hubble Provides Clear Images
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| Title |
Hubble Provides Clear Images of Saturn's Aurora |
| General Information |
What is an American Astronomical Society Meeting release? A major news announcement issued at an American Astronomical Society meeting, the premier astronomy conference. Here is the picture of Saturn taken by the Hubble telescope in ultraviolet light. The glowing, swirling material at Saturn's poles is its auroral "curtains," rising more than a thousand miles above the cloud tops. Saturn's auroral displays are caused by an energetic wind from the Sun that sweeps over the planet, much like Earth's aurora, which is occasionally seen in the nighttime sky. The process that triggers these auroras is similar to the phenomenon that causes fluorescent lamps to glow. |
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AC79-9114-57
Pioneer Saturn PMOC (Mission
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8/2/79
| Description |
Pioneer Saturn PMOC (Mission Control Center) |
| Date |
8/2/79 |
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AC79-9114-58
Pioneer Saturn PMOC (Mission
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8/2/79
| Description |
Pioneer Saturn PMOC (Mission Control Center) |
| Date |
8/2/79 |
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Hubble Provides Clear Images
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PIA01269
Sol (our sun)
Wide Field Planetary Camera
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| Title |
Hubble Provides Clear Images of Saturn's Aurora |
| Original Caption Released with Image |
Propulsion Laboratory and managed by the Goddard Spaced Flight Center for NASA's Office of Space Science. This image and other images and data received from the Hubble Space Telescope are posted on the World Wide Web on the Space Telescope Science Institute home page at URL http://oposite.stsci.edu/pubinfo/, This is the first image of Saturn's ultraviolet aurora taken by the Space Telescope Imaging Spectrograph (STIS) on board the Hubble Space Telescope in October 1997, when Saturn was a distance of 810 million miles (1.3 billion kilometers) from Earth. The new instrument, used as a camera, provides more than ten times the sensitivity of previous Hubble instruments in the ultraviolet. STIS images reveal exquisite detail never before seen in the spectacular auroral curtains of light that encircle Saturn's north and south poles and rise more than a thousand miles above the cloud tops. Saturn's auroral displays are caused by an energetic wind from the Sun that sweeps over the planet, much like the Earths aurora that is occasionally seen in the nighttime sky and similar to the phenomenon that causes fluorescent lamps to glow. But unlike the Earth, Saturn's aurora is only seen in ultraviolet light that is invisible from the Earths surface, hence the aurora can only be observed from space. New Hubble images reveal ripples and overall patterns that evolve slowly, appearing generally fixed in our view and independent of planet rotation. At the same time, the curtains show local brightening that often follow the rotation of the planet and exhibit rapid variations on time scales of minutes. These variations and regularities indicate that the aurora is primarily shaped and powered by a continual tug-of-war between Saturn's magnetic field and the flow of charged particles from the Sun. Study of the aurora on Saturn had its beginnings just seventeen years ago. The Pioneer 11 spacecraft observed a far-ultraviolet brightening on Saturn's poles in 1979. The Saturn flybys of the Voyager 1 and 2 spacecraft in the early 1980s provided a basic description of the aurora and mapped for the first time planets enormous magnetic field that guides energetic electrons into the atmosphere near the north and south poles. The first images of Saturn's aurora were provided in 1994-5 by the Hubble Space Telescopes Wide Field and Planetary Camera (WFPC2). Much greater ultraviolet sensitivity of the new STIS instrument allows the workings of Saturn's magnetosphere and upper atmosphere to be studied in much greater detail. These Hubble aurora investigations provide a framework that will ultimately complement the in situ measurements of Saturn's magnetic field and charged particles by NASA/ ESA's Cassini spacecraft, now en route to its rendezvous with Saturn early in the next decade. Two STIS imaging modes have been used to discriminate between ultraviolet emissions predominantly from hydrogen atoms (shown in red) and emissions due to molecular hydrogen (shown in blue). Hence the bright red aurora features are dominated by atomic hydrogen, while the white traces within them map the more tightly confined regions of molecular hydrogen emissions. The southern aurora is seen at lower right, the northern at upper left. The Wide Field/Planetary Camera 2 was developed by the Jet |
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