Following the discovery of what appeared to be an ice-filled crater early this year, the MARSIS team announced that they have discovered a thin layer of water ice surrounding the southern polar ice cap. Though the layer is not very thick, its extent means that it contains about half as much water as the southern polar cap.
These findings were announced at this year’s Lunar and Planetary Sciences conference. As soon as they are published, or more details emerge, I will cover the story further here.
