Neil Degrasse Tyson reflects on what prompted him to record a 17-minute video detailing the shortcomings of Terrence Howard's lengthy math and physics treatise in a new interview with Shannon Sharpe.

Images via Getty/Kristina Bumphrey/Variety & Getty/JC Olivera/Variety When the aliens finally do make themselves known, they're unlikely to reveal themselves as big fans of Tyson, a prominent skeptic ...