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

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

A chemical called dimethyl sulfide popped up in an analysis of exoplanet K2-18b’s atmosphere. On Earth, it’s only made by ...

Astronomers claim they've found the most promising signs of possible life on a planet outside of our solar system.

Astronomers at the University of Cambridge in the UK said they have found the “most promising signs yet” of life on another planet outside of the solar system.