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 ...

Meteoritics is the study of meteorites — solid parts of asteroids or comets that have landed on another celestial body, notably (but not limited to) the Earth. Measuring the composition of meteorites ...