A series of studies have cast doubt on the sensational claim that "the strongest evidence yet" was found that life exists ...

The federal investigation determined medical personnel should have called off organ donation procedures sooner because of ...

Biotech remains challenged. The S&P 500’s biotech sub-index is down more than 10 per cent this year, while the broader index ...

In April, astronomers said they had detected a possible signature of life on the exoplanet K2-18b. Now, three independent ...

“It’s almost certainly not life,” says Tessa Fisher, an astrobiologist at the University of Arizona in Tucson. Here, Nature explores the high-profile claim — and why many scientists say it ...

Although the claims of life on K2-18b may be overblown ... Meanwhile, Cleaves quips that CFCs and other halocarbons could be signs that “someone else is advanced enough to ruin their atmosphere ...

Life. But how would we know it ... “Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they remain cautious,” states a ...