Is alien invasion armageddon coming for us in November? That's the speculation set off by a legitimate academic study recently published by a team of scientists. In early July, a previously ...

The tallest cliff in the solar system is so extreme that even imagining standing on its edge is enough to make your stomach drop. On a tiny, battered moon circling Uranus, a single fault scarp called ...

NPR's Ari Shapiro talks with astronomer David Jewitt about what we can learn from the third interstellar object to have entered our solar system, a comet-like object known as 3I/ATLAS. A remarkable ...