NASA’s Viking 1 lander set down in the Chryse Planitia region of Mars. Its identical twin, Viking 2, followed on Sept. 3 of ...

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

Some scientists believe the quasi-moon could have been created when a massive impact knocked a chunk of our own moon into ...

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

Chinese mission Tianwen-2 released a new image of an asteroid orbiting Earth, which is sometimes referred to as a “quasi-moon ...

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

A siphonophore—a colonial marine invertebrate related to the venomous stinging Portuguese Man-o-war—is scanned using Deep ...

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 ...

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 ...

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