Did a flying saucer just land at NASA? It sure looks like it.

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks are enormous.

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

For decades, humanity has searched the universe for signs of alien life — but some scientists warn that finding it may come with terrifying consequences. This video explores NASA’s Voyager missions, ...

A three-armed spacecraft is rushing to the rescue of a NASA telescope that’s in danger of crashing back to Earth.

Breakthrough Listen will scan the the skies with the aid of the MeerKAT Telescope. They are targeting a million nearby stars.

A rush rescue mission to save a NASA space telescope remains grounded, this time because of a last-minute launch problem.