jul 302012
 
Giant Ice Avalanches on Iapetus Give Clues to Landslides on Earth

  “We see landslides everywhere in the Solar System,” says Kelsi Singer, graduate student in earth and planetary sciences in Arts & Sciences at Washington University in St. Louis, “but Saturn’s icy moon Iapetus has more giant landslides than any body other than Mars.” When the rimwall of Iapetus’s Malun crater broke off and plunged [continue reading]

jun 212012
 
Water Ice at the Moon’s South Pole

  Scientists map Shackleton crater, whose unusually bright floor may hint at the presence of ice. Shackleton is an impact crater at the south pole of the Moon, that may have water ice. The crater is more than 12 miles wide and two miles deep (21 km in diameter and 4.2 km deep).   If [continue reading]