Over the Horizon: Art of the Future from the Paul G. Allen Collection is devoted to how the future, especially interplanetary travel, was imagined by artists and other thinkers during the 20th century. These include Chesley Bonestell, Robert McCall, R.C. Swanson, George Gibbs, and Fred Freeman, among many others. The artworks in this auction, along with their publication in popular magazines, inspired a generation of explorers, scientists, and aerospace engineers. Paul Allen was among the most significant collectors of works by Chesley Bonestell, widely acknowledged as the “father of space art.” Bonestell’s Saturn as Seen from Titan, first published in 1949, has been called by the Smithsonian “the painting that launched a thousand careers.” A version of that painting, circa 1952, is available in the sale, along with several works published as illustrations for the famous “Man Will Conquer Space Soon!” series of articles, published in Collier’s Magazine in the early 1950s.