Around 4.5 billion years ago, a planet called Theia is thought to have smashed into newborn Earth. The messy collision kicked ...

Some forecasters say a complex dance involving the polar vortex could send some of Earth's most extreme cold toward the ...

NASA's OSIRIS-APEX spacecraft captured stunning new images as it whipped past Earth during a high-speed slingshot maneuver, ...

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

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

Though it generated beautiful auroras around the world, the Gannon solar storm in 2024 was also a little dangerous.

To see Earth from space is to be forever changed by the view. Since Alan Shepard became the first American to lay eyes on our ...

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