# # Program information file # PROGRAM_ID 2021B069 PROGRAM_TITLE Water in the Deep Moon PROGRAM_INV1 Paul Lucey PROGRAM_INV2 Casey Honniball PROGRAM_INV3 Abigail Flom PROGRAM_INV4 Chiara Ferrari-Wong PROGRAM_INV5 PROGRAM_SCICAT solar system PROGRAM_ABSTRACT_BEG The SpEX observations proposed would collect data from 1.7 to 4 microns of large lunar craters to probe the water content of the lunar crust. There is an existing hypothesis that the lower portion of the lunar crust, that is exposed in the central peaks of large craters, may be hydrated: this project will test the hypothesis. Previous observations of the Moon with SpEX have demonstrated the feasibility of determining water contents using 3 micron observations of the Moon. PROGRAM_ABSTRACT_END