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

Pluto may have got romantic to capture its largest moon, colliding and engaging in a passionate but icy 10 hour kiss with Charon billions of years ago. When you purchase through links on our site ...

Astronomers have long wondered how Charon, the largest of those moons, came to orbit Pluto. A paper published Monday in the journal Nature Geoscience described a possible sequence of events that ...