This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Apollo 16, the fifth manned lunar ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. In the December 1972 issue of Popular Science, writer Alden P ...

The Apollo missions showed exact science at work. Each part needed to be close to perfection from start to finish. NASA succeeded with 1960s tools—a remarkable feat. Though it was still cutting-edge ...