Like our ancestors, we look up at the heavens and wonder. What is the structure of the universe? How significant are we? Are we alone? In Carl Sagan’s words, “we are a way for the cosmos to know itself.” To commemorate the acquisition of The Seth MacFarlane Collection of the Carl Sagan and Ann Druyan Archive, the Library of Congress presents an exploration of these questions across the breadth of its collections and offers a first glimpse into Carl Sagan’s papers.