Neil deGrasse Tyson is an American astrophysicist, author, and science communicator. He is currently the Frederick P. Rose Director of the Hayden Planetarium at the Rose Center for Earth and Space and a research associate in the department of astrophysics at the American Museum of Natural History. From 2006 to 2011, he hosted the educational science television show "NOVA ScienceNow" on PBS and has been a frequent guest on "The Daily Show", " The Colbert Report", " Real Time with Bill Maher", and "Jeopardy". In March 2014, he became host of the television series "Cosmos: A Spacetime Odyssey", an update of Carl Sagan s "Cosmos: A Personal Voyage". Tyson has written several nonfiction books, including "Death by Black Hole", which was a "New York Times "bestseller.