Airborne Dust Plumes Lofted by Dislodged Ice Blocks at Russell Crater, Mars

Southern Circumpolar Crater Ice Deposits on Mars

Introduction: Layered deposits at the poles of Mars are thought to preserve a record of past climatic conditions in up to 3 km of water ice and dust. Just beyond the extent of the south polar layered deposits (SPLD), dozens of impact craters in the heavilycratered southern highlands contain mounds of fill material. Many of these crater-filling deposits (CFDs) appear to be outliers of the main S...

Mars atmosphere. Mars methane detection and variability at Gale crater.

Reports of plumes or patches of methane in the martian atmosphere that vary over monthly time scales have defied explanation to date. From in situ measurements made over a 20-month period by the tunable laser spectrometer of the Sample Analysis at Mars instrument suite on Curiosity at Gale crater, we report detection of background levels of atmospheric methane of mean value 0.69 ± 0.25 parts pe...

Ancient aqueous environments at Endeavour crater, Mars.

Opportunity has investigated in detail rocks on the rim of the Noachian age Endeavour crater, where orbital spectral reflectance signatures indicate the presence of Fe(+3)-rich smectites. The signatures are associated with fine-grained, layered rocks containing spherules of diagenetic or impact origin. The layered rocks are overlain by breccias, and both units are cut by calcium sulfate veins p...

Orbital Observations of Dust Lofted by Daytime Convective

Airborne and spaceborne ice sounding of Antarctica, Mars and Europa

Satellite-based radio echo sounding technique is of interest to the Earth science community over Antarctica and Greenland, as well as to the planetary science community for exploring subsurface structures of Mars and Europa. Pioneered by the Mars exploration community using MARSIS radar on board the Mars Express mission, such a technique has demonstrated ice sounding capability down to a few ki...