Special guests: 1) Dr. Neil Tyson, director of the Hayden Planetarium, speaks about the universe. 2) Dr. Fulvia Melia, of the Univ. of Arizona, speaks of black holes and what may lie beyond.
Special guests: 1) Dr. Neil Tyson, director of the Hayden Planetarium, speaks about the universe. 2) Dr. Fulvia Melia, of the Univ. of Arizona, speaks of black holes and what may lie beyond.