A nihilistic alien civilization sounds like one that would simply lose hope, abandon progress, and fade away. But this ...

Alien megastructures built to harvest stellar energy or alter the orbits of stars may be physically feasible, according to a ...

Advanced alien civilizations may communicate via a series of flashing lights, similar to how fireflies do, a new paper hints. This would potentially make extraterrestrials much harder to spot if we ...

Is anybody out there? Probably. Most stars have planets; we've discovered more than 6,000 exoplanets thus far, and the most basic statistics point toward the existence of countless potentially ...

If so, why haven’t they said hello? The humble residents of this pale blue dot have been on a quest to find an alien civilisation for more than a century. First, it was the “canals” of Mars. Then ...

Where are all the aliens? No, I don’t mean microbes on Mars or creatures swimming beneath the ice crusts of Europa or Enceladus, but honest-to-God intelligent aliens, capable of space travel? The ...

There’s no denying the allure of alien artifacts. Science fiction is awash in the material remnants of extraterrestrial civilizations, which surface in everything from the classic books of Arthur C.

Prefer Newsweek on Google to see more of our trusted coverage when you search. Elon Musk discussed his views on whether aliens exist during a discussion at the World Economic Forum in Davos, ...

Daniel Whiteson and Andy Warner’s upcoming book is a philosophical exploration of the humanity behind our desire to find aliens. Reading time 6 minutes At Gizmodo, we love a good story about ...

Assuming intelligent aliens know how to harvest energy from stars, would humanity be able to spot these high-level structures? Reading time 3 minutes Assuming aliens do physics like us but are ...