Jordan Flowers claims Russia and China may be reverse-engineering alien technology, raising national security concerns.

In 1877, an Italian astronomer mapped faint lines on Mars and called them canali, meaning channels or grooves. But the word ...

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

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer ...

The renowned Egyptologist and former Egyptian Minister of Antiquities, Zahi Hawass, responds to periodically raised ...

An astrophysicist who searches for life in the Universe unpacks Steven Spielberg's UFO blockbuster Disclosure Day ...

Four wildly different machines reveal where American performance is now and where it’s headed next.

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

The Daleks may be Doctor Who‘s most iconic villains, but they’re also something of a continuity minefield. In part, that’s ...

Lionfish, mitten crabs and “sea vomit.” Meet eight marine species who inadvertently moved to new territory and took the ...

Do little green men exist? Was 'Men In Black' a documentary? Prediction markets price the odds of the U.S. confirming aliens before 2027 - here’s why traders overwhelmingly expect a government ...