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

But new research from the University of Chicago is urging caution. After analyzing data from multiple observations of the ...

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

"Until we can separate these signals more clearly, we have to be especially careful not to misinterpret them as signs of life." ...