Hearts of Darkness: Black Holes in Space
Dr. Alex Filippenko (University of California, Berkeley)
Listen (mp3 file, 26.5 MB)
Black holes are regions of space where gravity is so strong that nothing, not even light, can escape! No longer confined to the imaginations of science-fiction writers and theoretical physicists, black holes have recently been discovered in large numbers by observational astronomers. Learn about the remarkable properties of these bizarre objects from one of the finest explainers in the field of astronomy.