New Analysis of LCROSS Impact Plume Suggests Cometary Source of MSP Volatiles
Revised assessment of data collected by LCROSS and LAMP instrument aboard LRO during 2009 Centaur rocket impact focuses on elemental prevalence of hydrogen, nitrogen, oxygen, and sulfur compared to carbon; Study authors from Southwest Research Institute, Johns Hopkins APL, Aix-Marseille University, UT San Antonio conclude comet origin best fits composition profile, that 1-3 m of regolith within Cabeus crater (84.9°S, 35.5°W) may predate latest volcanism (~1 Gya) and “returning humans to the Moon presents an unprecedented opportunity to determine the origin of volatiles stored in PSRs”