jul 212012
 
Titan's River Networks Point to a Puzzling Geologic Past

  For many years, Titan’s thick, methane- and nitrogen-rich atmosphere kept astronomers from seeing what lies beneath. Saturn’s largest moon appeared through telescopes as a hazy orange orb, in contrast to other heavily cratered moons in the solar system. Findings suggest the surface of Saturn’s largest moon may have undergone a recent transformation. Images from the [continue reading]