As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

According to a new scientific hypothesis, alien civilisations may only become detectable at the moment of their collapse.

We've all grown up dreaming of aliens landing on the Earth or laser beaming across the sky; well, either way, it's sci-fi and ...

But on a smaller scale, three additional and mysteriously symmetrical jets become apparent in the Hubble observations, which ...

The simulation hypothesis—the idea that our universe might be an artificial construct running on some advanced alien computer ...

“Hollywood has preconditioned us to expect one of two types of alien contact, either a hostile invasion force or a benevolent ...

There's the invasion by a warlike species, there's the highly evolved species trying to communicate with our primitive ...

A dedicated scan for signs of radio-transmitting technology in interstellar comet 3I/ATLAS has come back with absolute cometary radio silence.

Scientists suggest the first alien signal we detect could be a desperate cry for help from a fading civilization.

Harvard's Avi Loeb argues 3I/ATLAS shows signs of alien technology, from its 0.2% probability flight path to bizarre metal ...

The controversial Harvard astronomer is one of the main sources of the "alien mothership" hypothesis. This is what he thinks, ...

Harvard professor and astrophysicist Dr. Avi Loeb says 3I/ATLAS is 'most likely natural' after speculations of 'alien tech' ...