Project Hail Mary, Solaris, and The Hitchhiker's Guide to the Galaxy are all among the very best sci-fi books set in space.

The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home ...

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

Add Yahoo as a preferred source to see more of our stories on Google. The night sky looks crowded, but physics may keep distant civilizations from ever meeting or even noticing one another. (CREDIT: ...

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

There is something almost offensive about a sky so full of stars and so empty of company. That is what gives Richard Feynman's quote its sting: "There is a silence in the night sky that has bothered ...

A new line of research proposes that the first clear signs of extraterrestrial intelligence may not come from distant stars, but from dust already sitting on the Moon. The idea is outlined in a ...

Pulverised technology from collapsed alien civilisations may lie scattered across the solar system, including on the Moon, a new study suggests. The likelihood of advanced aliens living at the same ...

Somewhere in the Mojave Desert, a gleaming white dome sits in the middle of nowhere, and the story behind it is stranger than ...

SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology ...

The technology could be used to send probes across interstellar space to other star systems.

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...