When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

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

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

When the U.S. was born, humanity was still seven years away from balloon-borne flight. Where might we be another 250 years from now, should the nation be fortunate enough to survive that long?

NASA's Curiosity rover found pure sulfur crystals inside a rock after backing over and accidentally crushing it on May 30, ...

For decades, the moon was seen as a barren, bone-dry world with no atmosphere, no liquid water, no magnetic shield, and extreme swings in temperature. The idea that it could ever support life seemed ...

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

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

Every time I see the moon in the sky, it makes me happy. Our natural satellite is so familiar it’s easy to take it for ...

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

Future Artemis astronauts may be able to explore rocks blasted from deep inside the Moon by an ancient giant impact.