Many experts believe that aliens exist in the universe, with the key elements needed to sustain life found on comets, ...

Astronomers have been scanning the skies for alien radio signals for decades, but so far they’ve heard nary a peep (with one possible exception). But according to a recent study, that could be because ...

In her new book "First Contact," journalist Becky Ferreira explores the scientific search for alien life, our cultural obsessions with extraterrestrials and why the truth may be more human than we ...

For as long as humans have looked up at the night sky, we've wondered who, or what, might be looking back. From ancient myths about gods descending from the heavens to 20th-century UFO sightings and ...