Neil degrasse tyson where are the aliens 19:20 Neil deGrasse Tyson Explains Alien Visits, UFOs, and Other Conspiracies 19:53 Have Aliens Visited Earth? | StarTalk 101 with Neil deGrasse Tyson 55:09 Watch Neil deGrasse Tyson BUST Alien MYTHS for an Hour!! 46:27 Lost in Translation: Encrypted Alien Messages with Neil deGrasse Tyson and Charles Liu 12:12 The Fermi Paradox With Neil deGrasse Tyson - Where Are All The Aliens? 06:58 Neil deGrasse Tyson Uses Aliens To Make Points About Our Human Perspective 08:10 Neil deGrasse Tyson Weighs In On UFO Congressional Hearing | The View 12:04 What's Up With Those Alien Bodies? 05:34 Are Mexico’s Alien Mummies Real? Neil deGrasse Tyson Weighs In 02:07 Mysterious UFO Captured Near the Sun | Latest UFO Sightings | UFO Documentary | UFO Sightings | UAP 10:33 Neil deGrasse Tyson Responds to Stephen Hawking's Take on Aliens (from Joe Rogan Experience #919) 1:22:50 Neil DeGrasse Tyson, Are Aliens Living Among Us? - Dropouts #126 51:48 Alien Heists and Scimitars with Neil deGrasse Tyson & Charles Liu | Cosmic Queries 15:43 Neil deGrasse Tyson's Skepticism Over UFO's 10:32 Theo Von Asks Neil deGrasse Tyson About Aliens 10:24 Neil deGrasse Tyson shares what he thinks aliens would say about Earth 50:24 Are Aliens Smarter Than Us? With Neil deGrasse Tyson and David Grinspoon 03:37 Neil deGrasse Tyson explains how aliens could be so much smarter than us 00:46 Why Aliens must be Smarter than Us 👽 w/Neil deGrasse Tyson More results