A study suggesting the exoplanet K2-18b shows potential signs of alien life has been met with skepticism from the scientific ...

Last week astronomers reported hints of biological activity on a distant planet, but a re-analysis of their data suggests the ...

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

Based on observations from NASA's James Webb Space Telescope, the study points to alien life on K2-18b, a distant exoplanet ...

K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know ...

Observations by the James Webb space telescope find possible biological activity on a giant planet 124 light-years from Earth ...

It's an exciting breakthrough, but it doesn't confirm alien life. Let's look at why scientists largely do not accept the ...

On a faraway planet, the James Webb Space Telescope has picked up signs of molecules that, on Earth, are produced only by ...

Fifty years ago, scientists recovered samples of potential extraterrestrial life, but may have unintentionally destroyed it during experiments.

The crew of an alien spacecraft entering the Solar System, maybe looking for planets bearing alien life, would be struck by ...

NASA has revealed a 328-foot-wide hole on Mars, potentially a gateway to subterranean caves that could harbor alien life.