Imagine a super-advanced alien civilization that needs insane amounts of energy way beyond our puny solar panels and wind ...

They’re hole-ar powered. If super-advanced alien civilizations exist, they would surely require insane amounts of energy to ...

Searching for extraterrestrial intelligence has so far primarily meant focusing on one particular type of signal—and that ...

Looking ahead: Existing radio surveys may contain signals that were never recognized as potential technosignatures. New ...

A new study published as a preprint on arXiv suggests that advanced extraterrestrial civilizations might not need to surround ...

R L Drake explores the Fermi Paradox: why, given the Milky Way's billions of potentially habitable planets and the Drake Equation's estimate of 12,500 possible ...

For decades, science fiction writers have tried their best to prepare us for eventual contact with aliens. Their efforts are dominated by several recurrent tropes. There's the invasion by a warlike ...

Researchers are zeroing in on more deliberate “narrow-band” alien signals, well outside the radio frequencies SETI has ...

“There is a silence in the night sky that has bothered me for as long as I can remember.” That line, attributed to Richard Feynman, lands because it gets at a simple, stubborn feeling. The sky looks ...

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

Black holes can release enormous energy through hot disks, surrounding plasma and powerful jets, enough to support a ...