Scientists have discovered a new type of planetary collision called “kiss-and-capture,” where Pluto and proto-Charon briefly connected and spun together before separating into their current orbital ...

Scientists think a small rock discovered near Earth last August was hurled into space by an ancient impact on the lunar surface.

It is thus only fitting for a goddess to be named for none other than the door hinge: Cardea. And now, thanks to Clay ...

This once-in-a-generation shift is a pivotal power play in a saga that will unfold in the years and decades to come.

On Jan. 21, the sun will join forces with Pluto in Aquarius, stirring things up in a powerful way. Discover what this ...

University of Arizona researchers have unveiled evidence of romance at the farthest reaches of the solar system: a cosmic ...