Thursday, May 20, 2010
Moon of the Day - Europa
Today's moon is Europa, the smallest of Jupiter's four Galilean satellites.
Europa is another very important moon in the search for extraterrestrial life. That's because its fractured, icy surface sits on top of an ocean of liquid water, which scientists believe could be 100 kilometers deep. Since life on Earth arose out of the oceans, an ocean of liquid water on another world is a great place to start looking. Of course, getting to that ocean presents a problem: the icy surface is several kilometers thick.