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Neil deGrasse Tyson explains what Earth will look like in 500 years


Neil deGrasse Tyson explains how humans will evolve in the future


Neil deGrasse Tyson explains why killer robots don't scare him



Neil deGrasse Tyson just outed a 'Game of Thrones' actor as a nerd who can recite Pi by heart


Neil deGrasse Tyson tells us why 'Star Trek' is so much better than 'Star Wars'


Neil deGrasse Tyson explains why a private company won't get us to Mars



NEIL DEGRASSE TYSON: How lightsabers could work


Neil deGrasse Tyson weighs in on the wild World Series prediction from 'Back to the Future II'


Neil deGrasse Tyson: Here's how Bill Clinton 'lost' our leadership in particle physics