When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

When you ask anyone to name the ultimate adversary of the Man of Steel, you will almost universally hear the same few answers pop up. People immediately point to Lex Luthor with his brilliant ...