It's the oldest question on Earth. Where did we come from? Some people may thank a creator from above, but what if the hand that created humanity wasn't divine? What if aliens brought life to Earth?

Want to be a top notch candidate for hosting alien life? Then there's a few key requirements you should be aware of: Ideally, you're a large object like a moon or a planet; scientists suspect you also ...

The best reason to send humans to Mars isn’t for guts or glory—or the construction of colonies to safeguard against existential Earth-bound risks. Instead it’s to answer a single, simple question: Is ...

Hidden within Cassiopeia A, the youngest known exploded star in our galaxy, astronomers have found surprisingly high levels of chlorine and potassium. These elements carry an odd number of protons in ...

Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity outside the solar system," according to a University of Cambridge study.

If aliens are out there, why haven’t we heard from them? That’s the question at the center of Pop Mech’s new story, “Aliens Probably Exist—But They’re Staying Silent For a Reason, NASA Scientist ...

That’s what most Americans believe, according to a new YouGov poll. The majority think that extraterrestrial aliens definitely or probably exist, the survey found, and many are also pretty sure ...

A video shown on Capitol Hill on September 9 reportedly shows an American hellfire missile attacking and simply bouncing off a UAP (the military term for a UFO). When videos like this come out, ...

Methanol has long been considered a basic building block of life as we know it: the molecule plays a crucial role in producing the proteins and amino acids that make up DNA and RNA, upon which all ...

Is there an Outer SpaceX? With 3I/ATLAS set to fly by Earth in just over a week, experts continue to speculate over its origins. Harvard Scientist Avi Loeb believes that if aliens, the comet wouldn’t ...