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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Collage of a telescope under a starry sky and a planet in space. Earthlings, brace yourselves: the galaxy may be emptier than your ...

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

Science fiction often portrays alien civilizations as godlike, wielding powers that seem supernatural to us. But extreme technological advancement can blur the line between science and divinity, ...

Add Yahoo as a preferred source to see more of our stories on Google. One of the largest searches for alien intelligence in history is nearing completion, thanks to the help of more than 2 million ...

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 ...

Evidence of alien life or cosmic pyramid scheme? A documentary filmmaker sparked a discussion of advanced Martian civilizations after sharing footage that appeared to depict a “three-sided pyramid” on ...

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 ...

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern anxieties than the past itself? The idea that aliens assisted the ...

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 ...