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

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

Project Hail Mary, Solaris, and The Hitchhiker's Guide to the Galaxy are all among the very best sci-fi books set in space.

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 ...

Once it was clear that the finding was most likely real, the team took a closer look at the chemistry of the material nearest ...

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

The space agency has put out a call for its Moon & Mars Exploration Analog, which recreates the challenges of a long-duration ...

From "Independence Day" to "Invasion of the Body Snatchers", movies and TV shows are packed with advice for anyone aspiring ...

Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” – Arthur C.

Space exploration was a major theme of a state House hearing on Tuesday, even as the budget deadline looms over lawmakers.

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.