Scientists found 3.3 billion-year-old biosignatures in ancient meteorites and fossils—a billion years older than we thought ...

Little is known about the long-destroyed moon-forming planet, Theia. But it may have been born in the inner solar system—just like Earth—a new study suggests ...

"One Hand Clapping" draws from neuroscience, evolution, philosophy and a rich tapestry of cultural references to examine how ...

Two mysterious blobs deep inside Earth may hold clues about the origin of life on our planet, new research finds. Deep ...

Two enormous structures that sit at the border between the Earth's mantle and its core have puzzled scientists for decades.

The rare earth industry has spent years circling the same problem. Minerals move through too many borders, too many ...

How China gained control of 90% of rare-earth refining while the U.S. abandoned Mountain Pass mine, creating dangerous ...

It takes light a single day to travel 16 billion miles. The Voyager 1 probe will need a little longer, just 49 years.