Neil deGrasse Tyson
Neil deGrasse Tyson is an American astrophysicist 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.
American theoretical physicist and string theorist. He has been a professor at Columbia University since 1996. Greene's third book, The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos, published in January 2011, deals in greater depth with multiple universes, or, as they are sometimes referred to collectively, the multiverse.