Brian Cox - Is Intelligent Alien Life Rare? Subscribe to Science Time: https://www.youtube.com/sciencetime24 xtraterrestrial life, colloquially referred to as alien life, is life that may occur outside Earth and which did not originate on Earth. No extraterrestrial life has yet been ...

Where Are The Aliens? The Search For Extraterrestrial Life Subscribe to Science Time: https://www.youtube.com/sciencetime24 For more than four decades, astronomers have been searching for techno-signatures: Signals coming from distant alien civilizations. So far, scientists have found no ...

What would we do as a civilization if we found evidence for intelligent alien life? How would we deal with it? Neil deGrasse Tyson explains why alien civilizations may be rare, even though life in general may be ubiquitous throughout the galaxy and beyond. Neil deGrasse Tyson also explains ...