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Neil deGrasse Tyson Explains Alien Visits, UFOs, and Other Conspiracies
Theo Von Asks Neil deGrasse Tyson About Aliens
Watch Neil deGrasse Tyson BUST Alien MYTHS for an Hour!!
Neil deGrasse Tyson's Skepticism Over UFO's
Neil deGrasse Tyson Uses Aliens To Make Points About Our Human Perspective
Did Scientists Discover Alien Mega-Structures?
Have Aliens Visited Earth? | StarTalk 101 with Neil deGrasse Tyson
#NeildeGrasseTyson on #aliens visiting Earth
Will We Meet Our Alien Neighbors in 2031?
What's Up With Those Alien Bodies?
Scientists Discuss NASA’s Strategy For Finding Alien Life in the Universe
Neil deGrasse Tyson Responds to Stephen Hawking's Take on Aliens (from Joe Rogan Experience #919)