Remember the late celebrated astrophysicist Carl Sagan? An interesting tie exists between science phenom Neil deGrasse Tyson and him besides both having hosted the popular "Cosmos" show begun by Sagan. It's that Tyson met Sagan as a teenager. In fact, Sagan personally invited Tyson to visit Cornell University to convince him to enroll there. Sagan met Tyson in his professor's office on a Saturday, gave him a campus tour, then gifted him one of his books with a foretelling inscription: "To Neil