Neil deGrasse Tyson | Club Random with Bill Maher

Bill and Neil deGrasse Tyson on whether Neil is wrong about outer space, science vs. opinion, why Neil turned down a scholarship offer from Carl Sagan, how many astrophysicists exist in the world, Neil tries to change Bill’s mind about the youth of America, Neil’s Tonight Show experience, the gender spectrum in sports, why the Vegas Sphere would be the perfect TED talk setting, and the existence of aliens.