[NASA] This observation is one of three images requested from HiRISE at this location to monitor frost deposition, evolution and sublimation.
impact crater
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Habitable Zones, Imaging & Spectroscopy, Mars, Origin & Evolution of Life, Press Release
A New Mineral Identified On Mars Providing Insight To Supporting Life
Researchers from the University of Massachusetts Amherst are part of a team that has identified a unique mineral on Mars, described in Nature Communications. Named ferric hydroxysulfate, the mineral provides […]
Posted inComets and Asteroids, Extinction events, Impact events, Mapping, Geodesy, Cartography, Bathymetry, Meteorites & Asteroids, Press Release
Chicxulub Asteroid Impact Sulfur Release Was Less Lethal In Dinosaur Extinction
Approximately 66 million years ago, the Chicxulub asteroid, estimated to be 10-15 kilometer in diameter, struck the Yucatán Peninsula (in current-day Mexico), creating a 200-kilometer-wide impact crater. This impact triggered […]
Posted inAstrochemistry, Astrogeology, Lava / magma ocean / Volcanic Worlds, Mapping, Geodesy, Cartography, Bathymetry, Mercury, Moon, Status Report
Sulfur In The Moon And Mercury
This chapter presents a comprehensive overview of the abundances and distribution of S, and the processes that control the behavior of S on the Earth’s Moon and on Mercury. The […]
Posted inAstrogeology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Extinction events, Fossils & Paleontology, Impact events, Press Release
Australian Crater Could Offer Fresh Insight Into Earth’s Geological History
VCU’s Arif Sikder of the Center for Environmental Studies is part of the research team that is going back in time – by hundreds of millions of years.
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Europa, Icy Worlds, Imaging & Spectroscopy, Jupiter, Mapping, Geodesy, Cartography, Bathymetry, Status Report, Water/Hycean Worlds & Oceanography
USGS Online Interactive Map Of Europa
Europa, the second inner Jovian Galilean satellite, is believed to contain a global liquid water ocean covered by an ice shell likely 10s of kilometers thick. The paucity of impact […]
Posted inAstrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Ceres, Impact events, Press Release
Hypervelocity Impact Experiments Probe The Origin Of Organics On The Dwarf Planet Ceres
One of the most exciting findings from NASA’s Dawn mission is that Ceres, the largest object in the asteroid belt that lies between Mars and Jupiter, hosts complex organics.
Posted inAway Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Impact events, Press Release
Are Large Sulfur Isotope Variations Biosignatures in an Ancient, Impact-Induced Hydrothermal Mars Analog?
Discrepancies have emerged concerning the application of sulfur stable isotope ratios as a biosignature in impact crater paleolakes. The first in situ δ34S data from Mars at Gale crater display […]