A self-proclaimed time traveller claims aliens will make contact in 2028, sparking online debate. His assertions, made during ...

For generations, humans have imagined what it would be like to discover life beyond Earth. Would alien beings look anything ...

Hollywood makes initiating alien contact seem much easier than it has proven to be. In E.T. the Extraterrestrial, E.T. got ...

Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.

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

Are we alone in the Universe? With more than 100 billion galaxies in the observable universe and at least 500 billion planets ...

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence community, as well as to publish its findings in peer-reviewed journals ...

The Great Filter theory suggests advanced civilisations may self-destruct before contacting others, explaining the universe's silence.

When Gene Roddenberry created "Star Trek" in the 1960s, he instituted several rules for starship design that are still largely followed today.

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

Scientists say the findings of the new study may make future searches for extraterrestrial intelligence faster and more ...

SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology but found nothing beyond human-made interference. Even so, the ...