Inorganic methods for synthesizing important life-forming molecules, such as amino acids, have been active fields of study for decades. Different “recipes” involve interactions between inorganic molecules (e.g., CH4, NH3, H2, […]
Impact craters and basins are the dominant geologic features of many planetary surfaces. The paucity of large impact basins on Mars (only four are unambiguous: Hellas, Argyre, Utopia, and Isidis) presents […]
The 2,500-kilometer-diameter South Pole-Aitken (SPA) basin is the largest impact structure on the Moon. Such very large impact craters can potentially penetrate through the crust and sample the underlying lunar […]
The largest impact craters on the Moon are multi-ring basins with three or more topographic rings, and understanding the formation processes of these basins is important for understanding the evolution […]
Sponsored by the GSA Planetary Geology Division; GSA Geophysics Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Quaternary Geology and Geomorphology Division. This session focuses on the nature of […]
Dear Colleagues, Applications for the GSA Planetary Science Division’s Eugene M. Shoemaker Impact Cratering Award are due August 29, 2014. The Eugene M. Shoemaker Impact Cratering Award is for undergraduate […]