Researchers have detected the chemical fingerprints of gases that on Earth are produced only by biological processes.

A molecule detected on a planet 124 light-years away is produced on Earth by decaying phytoplankton and other microbes. There ...

"Either our models are in error, or the DMS/DMDS might not exist," Schwieterman told Space.com. "Finding life outside the ...

In a potential landmark discovery, scientists using the James Webb Space Telescope have obtained what they call the strongest ...

Even in the best of circumstances, however, talk of a biosignature is an invitation to scientists to think of alternative ...

A Cambridge team studying the atmosphere of a planet called K2-18b has detected signs of molecules which on Earth are only ...

Tutolo led a new study of rock samples collected by the Curiosity rover that might have answered this question. The mystery ...

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

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