The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from a European Space Agency orbiter on its way to Jupiter.

If you examine our solar system’s giant planets, you’ll notice right away that they’ve all got moons—a lot of moons. While ...

When a mysterious crescent appeared over Moscow in 1967, alien enthusiasts were unaware they were actually tracking a ...

In the spring of 1967, a series of unusual sightings began to grip the ...

The European Space Agency's JUICE spacecraft has captured detailed images of the interstellar comet 3I/ATLAS, offering ...

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from a European Space Agency orbiter on its way to Jupiter.

Former president Barack Obama this weekend appeared to drop an otherworldly bombshell: extraterrestrials exist. “They’re real, but I haven’t seen them,” Obama said in a podcast released Saturday.

The science is accessible and Ryan Gosling is a superb Everyman in the excellent space adventure "Project Hail Mary," based on Andy Weir's novel.

There is a silence in the night sky that has bothered me for as long as I can remember. ” Richard Feynman’s reflection lingers because it feels personal.

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system.

"Stargate SG-1" became a sci-fi fan favorite, resulting in one of the longest-running genre series ever. We've picked five of ...