A red dwarf 130 light-years away has just rewritten the rules of space weather. For the first time, astronomers have captured definitive evidence of a massive coronal mass ejection from a star other ...

Astronomers thought they had seen the "first hints of life on an alien world" this year, but they disappeared under closer ...

It’s a sweltering Tuesday in Washington, D.C., the kind of day that stretches the definition of Earth as a “habitable” planet. But on an eighth-floor terrace near the U.S. Capitol building, dozens of ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

There’s a strange allure to being dropped into an unknown world where the only familiar thing is your sense of panic, as if you were a kid again, turning off the lights and running to your bed at ...

Don’t expect a straightforward timeline, because continuity is a mess with the Alien and Predator timelines (even if, as in this list, you choose to ignore tie-in comics, novels, and games). Predator: ...