The Science: Europa has been considered as a top contender for alien life for even longer than Enceladus, thanks to its ...

Potential for Life in Exoplanet Atmospheres Microbial life might thrive in the upper layers of exoplanet atmospheres, particularly in the presence of colorful microorganisms that could alter cloud ...

Tiny life forms adrift in alien skies might one day expose themselves through the faintest play of light. A new study suggests that airborne microbes could leave detectable spectral fingerprints in ...