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Images from the High Resolution Imaging Science Experiment (HiRISE) on board the Mars Reconnaissance Orbiter (NASA). We are based out of the Lunar and Planetary Laboratory at the University of Arizona in Tucson, AZ. https://uahirise.org

HiRISE Beautiful Mars (NASA)

HiRISE 3D: Gorgeous Gullies Give your eyes an extra second to adjust and take the full of these well-defined gullies on a steep crater wall. The floor of the crater appears relatively flat, perhaps some glacial processes were once at work here. www.uahirise.org/anaglyph/ESP... #Mars #NASA

HiPOD: Landforms in Utopia Planitia This observation features landforms that resemble cratered-cones, but are distinct in shape and may have a different formation mechanism. With HiRISE, we can look for textures that may provide clues on how these features formed. uahirise.org/hipod/ESP_07...

HiPOD: The Tale of a Retreating Scarp This scene on the north rim of Secchi Crater shows a curious depression with zig-zag walls. Some of the linear ridges on the floor of this feature are aligned with them. More: uahirise.org/hipod/ESP_07... NASA/JPL-Caltech/University of Arizona #Mars #NASA

HiPOD: The Floor of East Candor Chasma This target location is an interesting area, with possible soft sediment deformation of lacustrine (lake-based) sediment. This observation was requested to support geologic mapping. uahirise.org/hipod/ESP_07... NASA/JPL-Caltech/University of Arizona #Mars

HiRISE 3D: Triangular Scars on Hillslopes This 3D image shows interesting triangular depressions on hillslopes in Nereidum Montes. Full image: www.uahirise.org/anaglyph/ESP... NASA/JPL-Caltech/University of Arizona #Mars #NASA #science

HiPOD: A Complex Geologic History of Aram Chaos Above the chaotic terrain are brighter materials made up of different kinds of sulfates that formed when water filled the crater. More: uahirise.org/hipod/ESP_07... NASA/JPL-Caltech/University of Arizona #Mars #science #NASA

The Scalloped Terrain of Utopia Planitia This image footprint is in a region of abundant scalloped depressions. Their formation most likely involves development of oval- to scalloped-shaped depressions that may coalesce together. uahirise.org/hipod/ESP_07... #Mars #science #NASA

HiRISE 3D: A Wonderously Weird Dune Field This stunning image is part of a campaign to aid in classification and volume estimates of dunes not mapped in the USGS global dune database of Mars. www.uahirise.org/anaglyph/ESP... NASA/JPL-Caltech/University of Arizona #Mars #NASA #science

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HiRISE Beautiful Mars (NASA)

Reanalysis shows that the Hubble Space Telescope's detection of water vapor escaping from Jupiter’s moon Europa might have been a glitch.

skyandtelescope.org

Evidence of Water Plumes from Jupiter's Moon Europa Vanishes

NASA declares MAVEN, its Mars atmosphere orbiter, dead

Over more than a decade at Mars, the orbiter revealed how the solar wind strips away the planet’s atmosphere — and why the world lost its water.

www.sciencenews.org

HiRISE Beautiful Mars (NASA)