New Mexico — the cradle of America's space program — offers a museum which celebrates man's exploration of space. This museum and theater / planetarium complex is dedicated to the preservation and interpretation of the history, technology, and science of the "Space Age." The Museum of Space History, a five-story golden cube nestled on the western slope of the Sacramento Mountains, mixes education with entertainment. The Museum's International Space Hall of Fame has exhibits ranging from Robert Goddard's early rocket experiments near Roswell to mock-ups of tomorrow's space stations. The Tombaugh IMAX® Dome Theater and Planetarium literally rocks the senses with large format films and star shows. The Astronaut Memorial Garden pays fitting tribute to the Challenger and Columbia astronauts. The International Space Hall of Fame honors more than 100 individuals, including Dr. Sally Ride, the first American woman in space; British scientist and author Arthur C. Clarke; journalist Walter Cronkite; and Russian cosmonaut Yuri Gagarin, the first human in space.