Old Mars is a "retro Mars science fiction"-themed anthology edited by George R. R. Martin and Gardner Dozois, published on October 8, 2013. According to the publisher Tor Books, the collection celebrates the "Golden Age of Science Fiction", an era before advanced astronomy and space exploration told us what we currently know about the Solar System, when "of all the planets orbiting that G-class star we call the Sun, none was so steeped in an aura of romantic decadence, thrilling mystery, and gung-ho adventure as Mars." Old Mars won a 2014 Locus Award.