A team of astronomers claims to have sniffed out a “biosignature” in the atmosphere of a distant planet called K2-18b. But ...

K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know ...

Astronomers have detected possible chemical signs of life on a faraway planet. But they caution much more work is needed to confirm their findings.

Humanity may be one step closer to finally answering the question of whether we're alone in the cosmos with a definitive "no.

Thanks to NASA's powerful James Webb Space Telescope, astronomers have found the best evidence yet of life on another world outside our solar system.

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

Scientists detect potential biosignatures on exoplanet K2-18b, marking what researchers call the "strongest evidence" yet of life.

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

Another is the discovery of life on another world, a moment that has inched a little closer today with the news that signs of a gas, which on Earth is produced by simple marine organisms, has been ...

Scientists know of over a dozen planets that orbit twin stars like the fictional “Star Wars” desert planet Tatooine.

Further studies are needed to determine whether K2-18b, which orbits a star 120 light-years away, is inhabited, or even ...