What happens up in the sky? Astronomers know, as do physicists, and they love to tell people about it. This collection from the Library of Congress brings together hundreds of items from the papers of the late Carl Sagan. The collection includes three primary sections that present models of the cosmos throughout history, the history of the possibility of life on other worlds, and information about Sagan's life and contributions to science and society. The Life on Other Worlds area is a real delight as it features early science fiction books as well as pop-culture items that include sheet music and movie posters. Within Articles and Essays, there are elegant pieces including, "Astronomical Innovation in the Islamic World" and "Galileo and the Telescope." All told, there are 331 items in this collection ranging from periodicals to audio recordings to wonderful home movies documenting Sagan's boyhood.[--SAMPLE RECORD--]