Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

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

'This one's exciting.' ...

Astronomers have identified GJ 3378b, a super-Earth located 25 light-years away, in the habitable zone of its star, raising ...

Research indicates airport radar systems may unintentionally broadcast Earth's presence to aliens up to 200 lightyears away, ...

Some of these approaches may show promise, but new research indicates much of today’s AI is even more easily duped by false ...

Once small enough, these technograins might gain a trip out of its host solar system by a solar wind that overcomes the star's gravity holding it back. These motes of dust are then free to roam the ...

Scientists detected gases on exoplanet K2-18b linked to life on Earth. The James Webb Space Telescope's future results show a ...

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should ...