When you buy through links on our articles, Future and its syndication partners may earn a commission. Some scientists think alien life could thrive in the clouds of Venus, seen here by Japan's ...

Life as we know it needs water, but life as we don't know it may run on concentrated sulfuric acid. The chemistry of life as we know it wouldn't work in a place like the huge Saturn moon Titan, where ...

Related video: What If We Discovered Alien AI? Nasa collaborated with SETI Institute and media artist Daniela de Paulis on a project to simulate sending an alien message to Earth to observe how humans ...