When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new ...

A planet with one side permanently roasting and the other frozen in endless darkness might still have a chance of supporting life. Researchers found that heat inside a tidally locked exoplanet could ...

Once small enough, these technograins might gain a trip out of its host solar system by a solar wind that overcomes the star's gravity holding it back. These motes of dust are then free to roam the ...

A new line of research proposes that the first clear signs of extraterrestrial intelligence may not come from distant stars, ...

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

“Disclosure” has become a cult word. It shouldn't be, since all it means, technically, is to reveal something. But the new wave of alien conspiracy theorists have made “disclosure” into a teasingly ...

Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.

My favorite horror RPG just got a new campaign, and I'm begging you to try the Alien Roleplaying Game now that Operation Leading Edge is on the way ...

Ever so slightly bigger than Earth, the exoplanet LHS 3844b orbits its parent star, LHS 3844, a red dwarf 48.5 light-years ...