"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

Pocock, a space scientist at University College London and BBC presenter, predicts alien life will be found by 2075 but ...

The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

Some of the world's leading experts have now revealed what noises life beyond Earth might really make - and they say Steven ...

NASA has confirmed that 31/ATLAS is a comet and not an alien spacecraft, as some had believed. But it did lead one scientist to map out what could happen if we one day encounter aliens ...

A Harvard University astrophysicist has sparked a furious debate by warning he cannot rule out that extraterrestrials are ...

President Donald Trump has been fully briefed on America's secret UFO programs and the existence of multiple alien races here on Earth. At least that is ...

Scientists first notice cosmic objects that have a loud signature and a huge presence in the universe. There is either ...

Since Viking 1 landed in 1976, humans have studied Mars from afar, relying on rovers and orbiters to analyze the planet. But ...

The first signals from extraterrestrial civilisations, according to David Kipping's Eschatian Hypothesis, are likely to be ...

Alien vs Captain America #2 hits stores Wednesday. Cap and the Commandos face HYDRA's xenomorphs while Red Skull plays mad scientist. What could go wrong?

Because Titan is tidally locked, the same side of the moon faces Saturn all the time, just like our own moon and Earth.