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Jim Watzin has been named the new director for NASA's Mars Exploration Program at NASA Headquarters in Washington.
NASA's Mars Exploration Program Director, Jim Watzin
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Erosion Resistance at 'Pink Cliffs' at Base of Martian Mount Sharp
Erosion Resistance at 'Pink Cliffs' at Base of Martian Mount Sharp
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Ripples Beside 'Pahrump Hills' Outcrop at Base of Mount Sharp
Ripples Beside 'Pahrump Hills' Outcrop at Base of Mount Sharp
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Erosion Resistance at 'Pink Cliffs' at Base of Martian Mount Sharp
Erosion Resistance at 'Pink Cliffs' at Base of Martian Mount Sharp (Labeled)
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Fine-Grained Rock at Base of Martian Mount Sharp
Fine-Grained, Finely Layered Rock at Base of Martian Mount Sharp
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Fine-Grained Rock at Base of Martian Mount Sharp
Fine-Grained, Finely Layered Rock at Base of Martian Mount Sharp (Labeled)
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A wheel track cuts through a windblown ripple of dusty sand in this Nov. 7, 2014, image from the Mastcam on NASA's Curiosity rover. The view spans about four feet across. This experiment was planned for yielding a view of the inside of the ripple for assessment of particle sizes and composition.
Ripple's Interior Exposed by Rover Wheel Track
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A wheel track cuts through a windblown ripple of dusty sand in this Nov. 7, 2014, image from the Mastcam on NASA's Curiosity rover. The view spans about four feet across. This experiment was planned for yielding a view of the inside of the ripple for assessment of particle sizes and composition.
Ripple's Interior Exposed by Rover Wheel Track (Labeled)
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Clues to Wet History in Texture of a Martian Rock
Clues to Wet History in Texture of a Martian Rock
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Technicians in a Lockheed Martin clean room near Denver prepare NASA's InSight Mars lander for propulsion proof and leak testing on Oct. 31, 2014.
Work on NASA's InSight Lander Starts New Phase
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The first demonstration of NASA's MAVEN Mars orbiter's capability to relay data from a Mars surface mission, on Nov. 6, 2014, included this and other images from NASA's Curiosity Mars rover. The image was taken Oct. 23, 2014, by Curiosity's Navigation Camera, showing part of "Pahrump Hills" outcrop.
Image Relayed by MAVEN from Curiosity Mars Rover
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The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) aboard NASA's Mars Reconnaissance Orbiter obtained this spectrum for comet C/2013 A1 Siding Spring during the comet's close approach to Mars.
Mars-Orbiting Spectrometer Shows Dusty Comet's Spectrum
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This graphic depicts what Mars' atmosphere would have looked like to a viewer with ultraviolet-seeing eyes after a meteor shower on Oct. 19, 2014. It combines an image from the Imaging Ultraviolet Spectrograph on NASA's MAVEN spacecraft with an illustration of how the atmosphere lies over Mars.
Ionized Metal in Mars' Atmosphere After Comet Flyby
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Five images of comet Siding Spring taken within a 35-minute period as it passed near Mars on Oct. 19, 2014, provide information about the size of the comet's nucleus. The images were acquired by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter.
Mars Orbiter Sizes Up Passing Comet
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This graph shows changes in apparent brightness of comet C/2013 A1 Siding Spring as it approached and receded from Mars, as seen by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. The pattern suggests the comet rotates once every eight hours.
Brightness Rhythm of Comet Is Clue to Rotation Rate
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A comparison of two radargrams from the SHARAD instrument on NASA's Mars Reconnaissance Orbiter shows effects on the Martian ionosphere from the close passage of a comet.
Radar Sees Effect of Comet Flyby on Mars' Ionosphere
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These plots portray data from radar sounding of Mars' mid-latitude ionosphere at three times on Oct. 19 and 20, 2014. The middle one shows effects of dust from a comet that passed near Mars that day. The data are from the MARSIS instrument on the European Space Agency's Mars Express orbiter.
Mars' Mid-Latitude Ionospheric Effects of Comet Flyby
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These spectrograms from the MARSIS instrument on the European Space Agency's Mars Express orbiter show the intensity of radar echo in Mars' far-northern ionosphere at three times on Oct. 19 and 20, 2014. The middle plot reveals effects attributed to dust from a comet that passed near Mars that day.
Radar-Detected Change in Mars' Near-Polar Ionosphere
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These eight graphs present data from the Neutral Gas and Ion Mass Spectrometer on NASA's MAVEN orbiter identifying ions of different metals added to the Martian atmosphere shortly after comet C/2013 A1 Siding Spring sped close to Mars. Dust particles from the comet delivered the metals to Mars.
Metals from Comet Dust Detected in Mars Atmosphere
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The places where the red line on this graph extends higher than the blue line show detection of metals added to the Martian atmosphere from dust particles released by a passing comet on Oct. 19, 2014. The graphed data are from the Imaging Ultraviolet Spectrograph (IUVS) on NASA's MAVEN spacecraft.
Comet Put Magnesium and Iron into Martian Atmosphere
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This illustration depicts the Imaging Ultraviolet Spectrograph (IUVS) on NASA's MAVEN spacecraft scanning the upper atmosphere of Mars.
Illustration of MAVEN's Ultraviolet Imager at Work
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Mariner Space Craft in test facility
Mariner Space Craft Weight Test
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Mariner 4 launch
Launch of Mariner 4 Spacecraft in 1964
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Walt Disney and Dr. Wernher von Braun and a model rocket
Walt Disney and Dr. Wernher von Braun
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This animation and still image of comet C/2013 A1 Siding Spring were taken by the Mast Camera (Mastcam) on NASA's Curiosity Mars rover as the comet passed near the red planet on Oct. 19, 2014.
Mars Curiosity Rover Views Comet Siding Spring
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