Neil deGrasse Tyson is America's best-known astrophysicist. But you knew that. You also know that he's written some popular science books, is hosting the new "Cosmos" series, and is the director of the Hayden Planetarium at the American Museum of Natural History in New York. But how well do you really know Tyson? Put your fan knowledge to the test and take the fun HuffPost Science quiz below to find out.
If you passed, congrats! You're in Neil deGrasse Tyson's inner orbit. If not, just take a look at the answer key below, and you'll be an expert on Tyson trivia in no time.