Assertion: water ice | /r/AtLocation | the floor of the crater
Facets:
Source sentences:
text: Update The impact plumes of the Lunar CRater Observation and Sensing Satellite (LCROSS) and its Centaur rocket stage in Cabeus crater near the south pole of the Moon on 9 October 2009 showed the spectral signature of hydroxyl, a key indicator that water ice is present in the floor of the crater (1).