Life on Earth may exist thanks to an incredible stroke of luck — a chemical sweet spot that most planets miss during their formation but ours managed to hit. A new study shows that Earth formed under ...

A new study suggests alien life may be easier to detect through clusters of similar planets rather than single biosignatures.

It’s impossible to forget just how much the sun affects life on our planet. It’s overwhelmingly the source of our light and heat, providing just enough to maintain the delicate climatic balance we ...

Unfortunately for science fiction fans, desert worlds outside our solar system are unlikely to host life, according to new ...

You have probably seen the images of the surface of Mars, beamed back by NASA’s rovers. What if there were a time machine capable of roaming Earth during its remote geological past, perhaps even going ...

This video animation shows planets believed to be detected in or near Gliese 581’s habitable zone, where life as we know it could exist, from 2004 to 2014. The blue dots point to candidate planets ...