Browse Archive
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Site of Warm Season Flows in Mars Crater
This image shows warm-season flows on a north-facing slope in middle southern latitudes of Mars. It was taken by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnais...
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Ice, Salt and Warm-Season Flows on Mars
This map of Mars shows relative locations of three types of findings related to salt or frozen water, plus a new type of finding that may be related to both salt and water.
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Warm-Season Flows on Slope in Newton Crater (Five-Image Sequence)
This series of images shows warm-season features that might be evidence of salty liquid water active on Mars today. Evidence for that possible interpretation is presented in a report by McEwen et al. ...
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Dark Flows in Newton Crater Extending During Summer (Six-Image Sequence)
This series of images shows warm-season features that might be evidence of salty liquid water active on Mars today. Evidence for that possible interpretation is presented in a report by McEwen et al. ...
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Oblique View of Warm Season Flows in Newton Crater
An image combining orbital imagery with 3-D modeling shows flows that appear in spring and summer on a slope inside Mars' Newton crater. Sequences of observations recording the seasonal changes at thi...
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Warm-Season Flows on Slope in Horowitz Crater (Eight-Image Sequence)
This series of images shows warm-season features that might be evidence of salty liquid water active on Mars today. Evidence for that possible interpretation is presented in a report by McEwen et al. ...
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Warm-Season Flows on Steep Slope in Slope in Terra Cimmeria (Eight-Image Sequence)
This series of images shows warm-season features that might be evidence of salty liquid water active on Mars today. Evidence for that possible interpretation is presented in a report by McEwen et al. ...
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Gullies and Newly Identified Flow Features in Same Mars Crater
This image contrasts gullies and recurring warm-season slope flows appearing in the same crater, in the middle southern latitudes of Mars. It was taken Nov. 27, 2007, by the High Resolution Imaging Sc...
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Changes in a Gully in a Mars Crater (Two-Image Comparison)
This back and forth comparison shows changes that occurred in a gully on a south-facing slope in middle southern latitudes of Mars. Such changes in gullies on Mars, unlike changes in a recently discov...
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Warm-Season Flows on Slope in Horowitz Crater (Nine-Image Sequence)
This series of images shows warm-season features that might be evidence of salty liquid water active on Mars today. Evidence for that possible interpretation is presented in a report by McEwen et al. ...
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Plausible Martian Habitats
Unfrozen brine in cryopegs and fracture networks provides habitats for the survival and growth of organisms both within and under frozen rocky materials on Earth and, by analogy, could provide habitat...
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Warm-Season Flows in Well-Preserved Crater in Terra Sirenum (Six-Image Sequence)
This series of images shows warm-season features that might be evidence of salty liquid water active on Mars today. Evidence for that possible interpretation is presented in a report by McEwen et al. ...
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Thickness Map of Buried Carbon-Dioxide Deposit
A newly found, buried deposit of frozen carbon dioxide -- dry ice -- near the south pole of Mars contains about 30 times more carbon dioxide than previously estimated to be frozen near the pole. This ...
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Seasonal Changes in Northern Mars Dune Field
Three images of the same location taken at different times on Mars show seasonal activity causing sand avalanches and ripple changes on a Martian dune. Time sequence of the images progresses from top ...
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Fractures in Carbonate-Bearing Rocks at Mars' Huygens Basin
This image from orbit covers an area about 460 meters (about 1,500 feet) across, in which carbonate minerals have been identified from spectrometer observations. Fractures and possible layers are visi...
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Nature's Drilling Exposes Deeply Buried Minerals
This image shows the context for orbital observations of exposed rocks that had been buried an estimated 5 kilometers (3 miles) deep on Mars. It covers an area about 560 kilometers (350 miles) across,...
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True Gullies on Mars
Images like this from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter show portions of the Martian surface in unprecedented detail. This one shows ...
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Opportunity Is Still Smiling
The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter acquired this color image on March 9, 2011, of "Santa Maria" crater, showing NASA's Mars Exploratio...
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Acidalia Planitia Mud Volcanoes
This proposed future Mars landing site in Acidalia Planitia targets densely occurring mounds thought to be mud volcanoes.
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Mud volcanoes are geological structures formed when a mixture of ... -
Dark Rimless Pits in the Tharsis Region
Two dark, rimless pits are located to the northwest of Ascraeus Mons in the Tharsis volcanic region of Mars. These pits are approximately 180 meters (591 feet) and 310 meters (1,017 feet) in diameter....
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