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

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

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: ...

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

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 ...

Get the latest federal technology news delivered to your inbox. You might think this column is about UFOs and the Pentagon's ...

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

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

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