Portraits of Saturn moons captured by Cassini
Tuesday, December 13, 2011 - 17:30
in Astronomy & Space
NASA's Cassini spacecraft successfully completed its closest-ever pass over Saturn's moon Dione on Dec. 12, slaloming its way through the Saturn system on its way to a close flyby of Titan. Cassini is expected to glide about 2,200 miles (3,600 kilometers) over the Titan surface on Dec. 13.