Neil deGrasse Tyson Spars with Rapper B.o.B about Whether Earth Is Flat

There are a lot of fierce, even uncomfortable debates happening in entertainment world now, from the totally not-OK gender disparity in pay to what to do about the diversity problem.

In a series of tweets, the "Airplanes" singer essentially declared us all fools for believing our planet is round, prompting Tyson to boldly go where no celebrity scientist has gone before: dropping basic science knowledge to a rapper over Twitter.

A lot of people are turned off by the phrase "flat earth" ... but there's no way u can see all the evidence and not know... grow up