The Galileo spacecraft spotted a shape on Europa originally compared to an asterisk, but now seen more as a spider. Whatever ...

A surprising new theory claims Earth’s building blocks were supernova ice, not stardust. This could change everything.

Kevin Lamb gets the nod for best photojournalism, while Nikki Cole short-listed for best daily news coverage of deadly ...

Gold, uranium, and other heavy elements on Earth did not form here. They were born in the violent deaths of massive stars and the collisions of neutron stars, traveling across the galaxy before ...