The Hunt for Vulcan
Early astronomers could see several of the planets with the naked eye. The invention of the telescope allowed for further understanding of our solar system. The work of Isaac Newton allowed later scientists to accurately predict Neptune, which was later observationally confirmed exactly where predicted.
Guest
Thomas Levenson: Professor Thomas Levenson is the winner of Walter P. Kistler Science Documentary Film Award, Peabody Award (shared), New York Chapter Emmy, and the AAAS/Westinghouse award. His articles and reviews have appeared in The Atlantic, the Boston Globe, Discover, and The Sciences. He is winner of the 2005 National Academies Communications Award for Origins.