LRO Measures Shackleton Crater Ice Levels

Up To 22% Ice In Shackleton Crater Surface Material According To LRO Laser Altimeter Data; LOLA Measured Albedo Of 3.2km-Deep, 19.3km-Wide Crater; New Map Shows 3B-Year-Old South Pole Crater Relatively Unscathed Since Formation, Brighter / Wetter Than Other Nearby Craters; Researchers Took Over 5M Measurements Of Permanently Shadowed Crater From Over 5K Orbital Tracks 

Image Credit: NASA