For decades, astronomers have chased fleeting hints that something alive might be lurking beyond Earth, only to watch each ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's concept shows what K2-18b might look like. Thought to be covered entirely in liquid water with a hydrogen-rich ...

A team of astronomers have detected what they call the most promising signs to date of a possible biosignature, or signs of past or present life linked to biological activity, on an exoplanet named K2 ...

An illustration of the exoplanet K2-18b, which some research suggests may be covered by deep oceans. NASA, ESA, CSA, Joseph Olmsted (STScI) A team of astronomers announced on April 16, 2025, that in ...

Hints of life may have just flickered into view from a world 124 light-years away, and the signal is coming through the James ...

LONDON (AP) - Astronomers have found possible chemical signs of life on a distant planet outside our solar system, though they caution more work is needed to confirm their findings. The research, led ...

Dimethyl sulfide, also known as DMS, sounds like it could be a chemical compound you’d try to avoid on an ingredient label or the poisonous ingredient in a murder mystery. But some scientists view ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Scientists have announced the detection of dimethyl sulfide—a chemical that, on Earth, is only produced ...

For the first time, scientists have used the James Webb Space Telescope to detect methane in the atmosphere of an exoplanet. Credit: Amanda Smith illustration While the James Webb Space Telescope ...

Researchers find certain biosignature molecules may not indicate life is present, contrary to popular thought. One way to understand the potential for life on far-off planets -- those in other solar ...