Neil D. Tyson is research scientist in astrophysics at Princeton University and Curator of Astronomy, Hayden Planetarium, American Museum of Natural History. A graduate of the Bronx High School of Science in New York City, Dr. Tyson received his B.A. in Physics from Harvard and his Ph.D. in Astrophysics from Columbia. He is author of the question-and-answer book "Merlin's Tour of the Universe," published by Columbia University Press
Donald Goldsmith is an astronomy writer in Berkeley, California, and the author of more than twenty books.