One of Elon Musk’s companies, SpaceX, recently acquired another of his companies, xAI. SpaceX is now the world’s largest ...

What if violent asteroid impacts actually jump-started life on Earth? Explore a dramatic theory. What if asteroids, long feared as destroyers of life, were key to our existence? Explore a ...

NPR's Ailsa Chang speaks to astronomer Sarah Greenstreet about her team's new discovery of the fastest-spinning large asteroid known to man. Forget world records because astronomers recently announced ...

Imagine a time when Earth was a molten, volcanic wasteland, heavily bombarded by colossal asteroids. We’ve long feared these cosmic impacts as destroyers of life, but what if they were the key to our ...