We're not sure what to call this one -- North Pole vs. South Pole? Over the Rainbow beef?
Yesterday, astrophysicist Neil DeGrasse Tyson took the time to offer some scientific explanations to B.o.B's continued Tweets on the topic:
B.o.B responded by getting back in his lane and starting a rap beef with Tyson (except Tyson doesn't rap as far as we know, so...)
B.o.B released a song on SoundCloud directed at Tyson and his many other doubters. The song features recordings of Tyson's voice (CAUTION! SOME EXPLICIT LYRICS):
But um, B.o.B said he definitely isn't doing this for publicity or to sell records.
Tyson, thus far, seems to not give a cosmo.