This program chronicles the history of astronomy, beginning with Ptolemy's earth centered paradigm, Copernicus' introduction of a sun centered solar system, and Newton's three laws of motion. Then the discovery of Neptune, Einstein's theories of Special and general relativity, Hubble's expanding universe, and the discoveries of quasars, white dwarfs, neutron stars, pulsars and black holes, and finally astronomy's modern frontiers -- the great attractor, dark matter and life existing on an extrasolar planet. Spanish subtitles. .