[Geobiology ] Impact crater hydrothermal systems, formed after asteroid and comet impacts, have been proposed as promising habitats for life on early Earth and as key targets in the search […]
crater
Posted inMars
Study Finds An Ancient History Of Water On Mars That Shifted Over Time
[Purdue University] From orbit, a carbonate-rich band of rock along the inside edge of Mars’ Jezero Crater looked like it might be the remains of an ancient lakeshore. Then NASA’s […]
Posted inCaves, Craters, Mountains, Subsurface, Lava Tubes
An Accidental Impact Crater Discovery
[NASA]. There are roughly 200 confirmed impact structures on Earth, but geologists estimate that hundreds more lurk undiscovered. Now, there’s at least one more—and a large one, at that—in the […]
Posted inEnceladus
The Enceladian Crater Production Function
[Icarus] Interpreting Enceladus’s past and present surface history and interior state remains challenging, owing to uncertain prescription of its impact bombardment history and limited interpretation of its crater statistics.
Posted inPlanetary Protection & Biosafety
Human-Related Microbes May Survive At The Moon’s South Pole
[NASA] Some of Earth’s microbes likely to hitch a ride to space with human explorers could survive in the shaded nooks and crannies of the Moon’s South Pole region, NASA […]
Posted inMars
A Mars Impact Crater Surrounded By Chunks Of Water Ice
[NASA] Boulder-size blocks of water ice can be seen around the rim of this giant meteoroid impact crater on Mars, as viewed by the High-Resolution Imaging Science Experiment (HiRISE camera) […]
Posted inEnceladus
The Enceladian Crater Production Function
[astro-ph.EP]. Interpreting Enceladus’s past and present surface history and interior state remains challenging, owing to uncertain prescription of its impact bombardment history and limited interpretation of its crater statistics. Further […]
Posted inMars
ExoMars Rosalind Franklin Rover Recon: Geological History Of Oxia Planum
[NASA] This crater contains exposures in the rim that can corroborate prevailing hypotheses for Oxia Planum’s geologic history ahead of the ExoMars Rosalind Franklin rover’s landing, currently planned for 2030. […]
Posted inMars
Cracks In A Martian Crater’s Ice
[NASA/JPL-Caltech/UA] Many impact craters on Mars were filled with ice in past climates. Sometimes this ice flows or slumps down the crater walls into the center and acquires concentric wrinkles […]
Posted inMars
Martian Geology: Possible Evidence Of Glacial Processes
At the southern section of the floor of an impact crater is this stunning lobate (tongue-shaped) debris apron with surface banding showing high sinuosity.