For more than a century, popular culture has trained us to picture extraterrestrials as bug-eyed, bipedal “little green men” ...

Scientists have made a discovery about Mars that could lead to uncovering alien life. They identified an 1,800-mile-wide plain in the northern hemisphere that has the right subsurface conditions to ...

The search for life beyond Earth requires expanding the very definition of what life can be. Some exoplanets, especially those orbiting cooler red dwarfs, might host purple plant life rather than the ...