Mars might have its own defense mechanism against life from Earth, in a kind of reverse of "The War of the Worlds" scenario ...

Spiderweb-shaped rock patterns on Mars may rewrite the timeline of when water disappeared from the Red Planet.

Craters, craters, and yet more craters: this snapshot from ESA's Mars Express is packed full of them, each as fascinating as ...

From city skylines to remote dark skies, skywatchers worldwide captured the total lunar eclipse 2026 in all its crimson glory ...

Gas streams gush into the Milky Way 's center and pile up into thick clouds, but for some reason, those ingredients don't materialize into as many stars as astronomers would expect.