The curious minds at What If explore what would happen if there is alien life on Jupiter's moon Europa.

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Does anywhere in the country better represent this era of the American experiment than a self-governing tech-company town ...

Canadian astronaut Jeremy Hansen is leaving the Canadian Space Agency following his historic Artemis II lunar mission, the ...

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

A Chinese spacecraft on a mission to collect and return samples of a near-Earth asteroid beamed back its first image of its ...

In new footage from National Geographic’s cameras on board the NASA mission, Reid Wiseman and Jeremy Hansen talk about naming ...

A deleted scene finally explains the blockbuster’s most mocked plot hole, making its infamous alien hacking twist far easier ...

Discover this week's must-see night sky events, moon phases, and stunning astrophotos. Sign up for our skywatching newsletter ...

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

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

The moon is not the only natural object traveling through space alongside Earth. Several small asteroids travel around the sun in near lockstep with our planet. And just like Earth, these space rocks ...