Back in 1969, when Neil Armstrong and Buzz Aldrin first set foot on the moon, scientists knew of just 31 other moons in our ...
By Sage Rohrbach A photo of five of Saturn’s moons, captured by the Cassani spacecraft. The moons visible are Janus, Pandora, Enceladus, Rhea, and Mimas. Courtesy of NASA/JPL-Caltech/Space Science ...