We have no idea what kind of life may exist on other planets, so it’s hard to know what to look for. Proxima Kósmos imagines ...

(cokada/iStock/Getty Images) Alien megastructures built to harvest stellar energy or alter the orbits of stars may be ...

The LHS 1903 system defies expectations with a rocky outer planet, prompting new ideas about how planets form and evolve.

'Do all aliens really need sunlight?' ...

Comet 41P/Tuttle-Giacobini-Kresak has begun acting a little unusually, but there are likely natural explanations before we go ...

The Black Knight story didn’t begin as a claim of alien technology. It began as an object that didn’t fit existing categories ...

I thought about the interstellar visitor as my daughter, wife, and I took turns dragging his wandering monster truck balloon ...

Swalwell’s anti-ICE campaign collides with his past backing of sheriff tied to agency With NASA’s lunar comeback a galactic-sized smash thanks to Artemis II, the world is wondering: What’s next? And ...

Don't they have something to do ? Even if there were any other life forms in the universe, the distance is far to great to make observation/communication likely. I ...

"It really bent your mind." The Artemis astronauts’ reflections echo a long described change that occurs when humans are ...

As space fever continues to grip the globe following the successful trip of Artemis II around the moon and back, internet ...