The early Earth's worldwide sea of magma may have been shaped by the young planet's rapid spin.
An ancient supercontinent turned inside out as the Earth swallowed its own ocean some 700 million years ago, new research suggests.
A lightweight object resembling an empty trash bag is winging around Earth in a truly bizarre orbit.
Despite warnings that there is little time left to get a handle on global warming, carbon emissions are on the rise.
Earth's early life might have been purple, suggesting the search for extraterrestrial life should scan for the color.
Huge, slow-moving waves that drive Earth's weather and shape the swirls in Jupiter's atmosphere also exist on the sun, new research reveals.
SpaceX founder Elon Musk is dating musician Grimes, apparently because of a shared love of nerdy puns.
Researchers use a cosmic gorilla to uncover the dangers of inattention in the search for alien life.
One of the biggest dips in the brightness of Tabby's star points to a possible source for its dusty light-blocker.