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

ALIEN species of resilient bacteria could be thriving in salty water reservoirs scientist believe might be hidden on Mars and Jupiter’s moons. A team of international scientists found that some types ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

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 ...

NASA's potential discovery of arsenic-based alien bacteria raises questions and implications for biology, prompting scientific scrutiny. Then it was an earth bacteria that has a unique kind of arsenic ...