Neil deGrasse Tyson is a American astronomer, astrophysicist, cosmologist, author, and science communicator. He popularized science with his books & frequent appearances on radio and television..
Neil deGrasse Tyson Biography
Neil deGrasse Tyson is a American astronomer, astrophysicist, cosmologist, author, and science communicator. He popularized science with his books & frequent appearances on radio and television..