In the search for Earth-like worlds beyond the solar system, Kepler-438b seems to have it all. Alas, its angry star is a poor host for any potential lifeforms.
A pale blue dot may not be the only hint of life beyond the solar system. New research suggests astronomers pay attention to pale orange worlds as well, since they may resemble what Earth looked like earlier in its history.
With more than 1,000 confirmed planets discovered by the Kepler space telescope alone, deciding which ones are 'habitable' is an overwhelming prospect -- but there could soon be a way.
On Wednesday, NASA's Saturn-orbiting Cassini spacecraft will take a deep but quick plunge through plumes of water vapor shooting out hundreds of miles into space from the planet’s small, ocean-bearing moon Enceladus.
A series of laboratory tests show that some terrestrial bacteria would adapt well to the salty and sulfate-rich ocean believed to exist beneath the hard icy shell of Europa.
The fascinating speculation surrounding a recent Kepler observation of a star 1,500 light-years away has reignited questions of alien life in our universe and what it means for future studies.
It's a virtual certainty that comets have delivered the building blocks of life to Europa's hidden ocean, according to a new study.
The last thing scientists searching for life on Mars want to find is a colony of hitchhiking microbes from Earth. To that end, an experiment poised to begin week aims to put some of the planet’s most tenacious bacteria through an ultimate survivors’ challenge.
+ Load More