The team still can't confidently rule out the existence of Europa's water vapor, especially as similar plumes have been more ...

Ganymede and Europa transit Jupiter tonight, while Io disappears in an occultation. West Coast observers can catch a double ...

The prospects of tall, vapory plumes of water gracing Europa's surface caused a huge splash in astronomy—but the very ...

A study suggests that the ice giant's largest moon, Triton, made a dramatic entrance to the Neptunian system long ago, ...