"If the ultimate result of this story is that the public is more circumspect about future claims of life detection, that's ...

A Harvard professor questions whether research conducted at the University of Cambridge about life on K2-18b is accurate.

Does alien life exist on an exoplanet? On TikTok, a University of Oxford astrophysicist cast doubt that extraterrestrial life ...

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 ...

Last week astronomers reported hints of biological activity on a distant planet, but a re-analysis of their data suggests the claimed molecules may not be there at all ...

U.S. team of researchers detected signs of two chemicals in the planet's atmosphere long considered to be "biosignatures" ...

That star-orbiting exoplanet, K2-18b, has long fascinated astronomers who consider it among the best ocean worlds to search for signs of extraterrestrial life. But one independent researcher is ...