One of Saturn's most photogenic moons gets its closeup in a new photo taken by the Cassini spacecraft. The image, released by NASA this week, was taken by the spacecraft on Oct. 23, when it was ...

"There is also some dust and little bits of rock in these rings." Astronomers know where at least one ring came from. The diffuse outer E-ring comprises icy particles from the Saturnian moon ...

As Earth blocked the sun's disk, only our ... ring" effect in the sky. This sparkling view of totality is the result of the precise size and orbital distance ratios of Earth, the moon and the ...