The biggest avalanches in the solar system happen on Saturn's moon…

Iapetus, already one of the strangest moons in our solar system, just got a little weirder. Images from the Cassini space mission reveal that the mysterious moon is home to massive ice avalanches second in size only to landslides seen on Mars. Studying them, say researchers, could help us better understand geological… » 7/30/12 7:25am 7/30/12 7:25am