A new study implies that in the past, moons in our solar system may have had rings just like planets do — deepening the ...

On Monday night you may have a chance to witness the moon obscuring the Red Planet at its brightest, as well as a comet’s ...

The larger moons of Pluto and Earth likely formed through a collisional process with Charon and our moon, respectively, ...

"We were definitely surprised by the 'kiss' part of kiss-and-capture. There hasn't really been a kind of impact before where ...

A researcher has used advanced models that indicate that the formation of Pluto and Charon may parallel that of the Earth-Moon system. Both systems include a moon that is a large fraction of the size ...