Astrophysicist Neil deGrasse Tyson on The Alcove with Mark Molaro.

Dr. Tyson is Director of the Hayden Planetarium at the American Museum of Natural History in New York. He is also the host of the PBS science program Nova scienceNOW. His latest book is the bestselling "Death by Black Hole and Other Cosmic Quandries". Dr. Tyson ruminates on all things cosmic - our expanding universe, black holes, asteroids threatening our planet and other phenomena. He discusses the need for more scientific literacy, the science versus religion debate, and he touches on the challenges he has faced to become an astrophysicist who happens to also be African-American. As always, we are enlightened and entertained by this remarkable scientist and educator.