Scientists suggest early Earth may have been colder overall, with solar eruptions and atmospheric chemistry helping create ...

Earth isn’t the only world in our solar system with something resembling an ocean system. Saturn’s moon Titan has a thick ...

Are we alone in the Universe? With more than 100 billion galaxies in the observable universe and at least 500 billion planets in the Milky Way alone, don’t you think we should have found something by ...

With the release of "Disclosure Day," Steven Spielberg's new film about aliens, a question as old as science fiction itself resurfaces: If aliens were to arrive on Earth, would they come to conquer us ...