COSMOS Host Explains Evolution & Climate Change On BILL MAHER!! New KORRA, ALMIGHTY, CROSSBONES, HEMLOCK, SMACKDOWN, & TREEHOUSE!! Brit Marling On FALLON!! Herc’s Friday TV Talkback!! Read the full article on AICN “Cosmos” host Neil deGrasse Tyson is the mid-show interview guest on tonight’s “Real Time With Bill Maher.” Economist Richard D.