Many have claimed to see a UFO or have an encounter with an alien, but what do the scientists have to say? Here's what ...

Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they ...

Dimethyl sulfide is cool—and a potential biosignature—but scientists are urging caution before we declare a plankton party ...

"Any claim of life on another planet requires a lot of justification, and I don't think we're there yet, Måns Holmberg, a researcher at the Space Telescope Science Institute who was part of the group ...

Scientists have found new but tentative evidence that a faraway world orbiting another star may be home to life. A Cambridge ...

The exoplanet K2-18b could harbor a massive ocean, but scientists will need to study the planet more to see if it’s really ...

Scientists have found the best ever hint of alien life on another planet. But they aren’t getting entirely excited just yet. In what might eventually be hailed as the first fingerprint of ...

Astronomers detected a possible signature of life on a planet orbiting a star 120 light-years away,” it read. Soon after, The ...

One such moment was when space craft sent back images of the Earth for the first time. Another is the discovery of life on another world, a moment that has inched a little closer today with the news ...

The idea of life on another planet is something that humans have thought about extensively. This is clearly demonstrated through art and science, both of which dream about the possibility of ...

The new discovery in an alien planet's atmosphere showed the chemical fingerprints of gases that are only produced by ...

Astronomers have found the clearest evidence yet that life might exist beyond the solar system, from the atmosphere of a planet 124 light years away from Earth, setting off rare excitement ...