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Presentation by Dr. Jim Green to PSS

Published: April 18, 2011

Planetary Science Division Update by Planetary Science Division Director Dr. Jim Green to PSS.

Planetary Science Division Update by Planetary Science Division Director Dr. Jim Green to PSS.

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NASA's Mercury-bound Mariner 10 on the launch pad in 1973.
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Charcoal briquette-shaped asteroid.
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Aerial platforms can now be equipped to investigate the structure of Venus' atmosphere and its circulation, and also to determine the chemical nature of the gaseous atmosphere and clouds.
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Detailed report on using aerial vehicles to explore Venus.
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The interaction of the solar wind with the Martian moon Phobos creates a complex electrical environment that could impact future exploration.
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Dawn's futuristic, hyper-efficient ion propulsion system allows Dawn to go into orbit around two different solar system bodies, a first for any spacecraft.
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Deep Space 1 spacecraft at a distance of 2.3 million miles (3.7 million kilometers) from Earth.
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Deep Space 1 Spacecraft at 2.3 Million Miles
On Mars the seasonal polar caps are composed of dry ice (carbon dioxide). 
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Spidery ice formations on the surface of Mars as seen from orbit.
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A simplified visualization of Saturn's magnetic field, or magnetosphere.
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Animation showing magnetic lines extending to form a bubble around Saturn.
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This image of asteroid 2015 TB145, a dead comet, was generated using radar data collected by the National Science Foundation's 1,000-foot (305-meter) Arecibo Observatory in Puerto Rico. The radar i...
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Dead Comet
Chuck Berry (left) and Carl Sagan (right) at a Voyager 2 Neptune flyby celebration in August 1989.
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Chuck Berry and Carl Sagan
This free NASA history eBook is a chronicle of humanity's attempts to send robotic travelers beyond Earth orbit.
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Too anxious to wait for the first official Mariner 4 processed image from Mars, employees attached these strips side by side to a display panel and hand colored the numbers like a paint-by-numbers ...
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This image of a detached large block from Urvara Craters rim was obtained by NASAs Dawn spacecraft on July 16, 2018 from an altitude of about 35 miles (56 kilometers).
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Large Block Detached from Urvara Crater's Rim
Large Block Detached from Urvara Crater's Rim
This image of a complex pattern on the floor of Occator Crater was obtained by NASAs Dawn spacecraft on July 16, 2018 from an altitude of about 58 miles (93 kilometers).
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Complex Pattern on the Floor of Occator Crater
Complex Pattern on the Floor of Occator Crater
This image of the base of Occator Craters eastern wall next to the Vinalia Faculae was obtained by NASAs Dawn spacecraft on July 23, 2018 from an altitude of about 84 miles (135 kilometers).
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Base of Occator Crater's Eastern Wall Next to the Vinalia Faculae
Base of Occator Crater's Eastern Wall Next to the Vinalia Faculae
This image of a large block along the ridge of Urvara Crater was obtained by NASAs Dawn spacecraft on July 24, 2018 from an altitude of about 36 miles (58 kilometers).
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Large Block Along the Ridge of Urvara Crater
Large Block Along the Ridge of Urvara Crater
This image of a fracture pattern on the floor of Occator Crater was obtained by NASAs Dawn spacecraft on July 25, 2018 from an altitude of about 87 miles (140 kilometers).
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Fracture Pattern on the Floor of Occator Crater
Fracture Pattern on the Floor of Occator Crater
This image of a fracture network on the floor of Occator Crater was obtained by NASAs Dawn spacecraft on July 26, 2018 from an altitude of about 94 miles (152 kilometers).
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Fracture Network on the Floor of Occator Crater
Fracture Network on the Floor of Occator Crater
This image of deep fractures in Occator Crater was obtained by NASAs Dawn spacecraft on July 31, 2018 from an altitude of about 31 miles (50 kilometers).
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Deep Fractures in Occator Crater
Deep Fractures in Occator Crater
This image of mass wasting features along Occator Craters rim was obtained by NASAs Dawn spacecraft on August 2, 2018 from an altitude of about 130 miles (210 kilometers).
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Mass Wasting Features Along Occator Crater's Rim
Mass Wasting Features Along Occator Crater's Rim
This image of Occator Crater on Ceres limb -- long exposure -- was obtained by NASAs Dawn spacecraft on August 14, 2018 from an altitude of about 1149 miles (1849 kilometers).
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Occator Crater on Ceres' Limb -- Long Exposure
Occator Crater on Ceres' Limb -- Long Exposure
This image of Occator Crater on Ceres limb -- short exposure -- was obtained by NASAs Dawn spacecraft on August 14, 2018 from an altitude of about 1149 miles (1849 kilometers).
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Occator Crater on Ceres' Limb -- Short Exposure
Occator Crater on Ceres' Limb -- Short Exposure
A printout of Mariner 2 data sent back from Venus during the first-ever close visit to another planet.
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A long, brown oval known as a "brown barge" in Jupiter's South Equatorial Belt is captured in this color-enhanced image from NASA's Juno spacecraft.
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