Astronomers have recently started looking for black holes bigger than galaxies. Brian Lacki explains how these “stupendously ...

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

The Kryptonite knives are out for Supergirl, a movie that while flawed is better than most of the caped stuff that's gotten a ...

An instrument on the Perseverance rover has identified large, complex carbon compounds alongside unusual patterns on the ...

Instead of searching the skies for radio signals, scientists suggest the first evidence of an extinct alien civilisation ...

In the lab, they’ve displayed astonishing prowess for getting through obstacles, including overcoming strong natural ...

Once small enough, these technograins might gain a trip out of its host solar system by a solar wind that overcomes the ...

Our search for technosignatures – clear signs of advanced civilizations beyond Earth – takes many forms. Many are driven by the famous Drake equation, which attempts to estimate how many technological ...

A newly released Apollo 16-era NASA audio recording in Pentagon UFO files has reignited Moon conspiracy theories after a participant casually mentioned a possible “alien star base” on the lunar far ...

For roughly the first three decades of his career, Spielberg tended to take a fairly sanguine view of aliens, refusing to succumb to the disaster-movie framework of aliens attacking terrified ...

Previous landmark scientific discoveries like the Higgs boson provide a better template for what it will take to confirm whether aliens have made contact with Earth.