A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The ...

Usually, these are regular people who happen to enjoy alien conspiracies, and they can largely be ignored. In the case of the ...

A mysterious cigar-shaped object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth, astronomers from Harvard University have suggested.

(CNN/CBS) -- A mysterious cigar-shaped object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth, astronomers from Harvard University have ...

"Warp drives" used by super-advanced alien civilizations may create specific space-time ripples in their wake that we can spot from Earth, a new paper argues. However, the jury is still out on whether ...

In a new study, scientists take on the search for extraterrestrial intelligence (SETI) community — and determine that they may have a crisis of imagination. Speaking to Universe Today, Columbia ...

The bright glint of alien oceans may be visible from afar, allowing astronomers to flag potentially habitable exoplanets. As Earth travels around the sun, it moves through phases much like the moon ...

Forbes contributors publish independent expert analyses and insights. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. NASA and Congress have repeatedly impeded the search for ...

It's been dubbed a comet, an asteroid, and a new class of interstellar object. Now, a paper from Harvard astronomers suggests one more possibility into the mysterious object nicknamed "Oumuamua": ...