This all-new special is an "Encyclopedia Galactica" of non-Earth life forms, and an investigation into the latest scientific understanding of life beyond planet Earth. ALIENS: THE DEFINITIVE GUIDE showcases the extraordinary scientists who are currently grappling with extraordinary questions about alien life including: what will aliens really look like?; how will they sound?; what might their words look like; and, of course, will they come in peace? This two-part special takes viewers to stunning, remote locations on Earth as well as elsewhere in the universe. (Source: The Science Channel)
What to Expect
Scientists examine where aliens might live and if they will ever visit Earth.
How to Prepare
Conclusion. Examining how humans might prepare for potential alien encounters.