At the same press conference, Musk announced that SpaceX's recent attempt to soft-land a rocket booster stage was successful. It landed and was in "healthy condition" immediately afterward. Unfortunately, they weren't able to recover it because it landed in the middle of a rough storm, which eventually destroyed the stage. The storm was rough enough that the Coast Guard wouldn't even send a boat out to help recover it. Musk said, "We'll get much bigger boats next time." SpaceX also plans on landing the stage on shore at some point, which makes recovery easier. Musk made this prediction: "I expect we will be able to land a stage back at Cape Canaveral by the end of the year."
Astronomers think that early in its life, Iapetus must have been hit by another moon, sending huge volumes of ejecta into orbit. Some of this condensed into a new moon that escaped into space. However, the rest formed an unstable ring that gradually spiraled in towards the moon, eventually depositing the material in a narrow ridge around the equator. Cassini's next encounter with Iapetus will be in 2015 which should give astronomers another chance to study the strangest mountain range in the Solar System."