One year ago, Congress defunded public media. Now that we're 100% community funded, please become a sustaining member or increase your existing membership today. Listen 6:30 Listen to the Story Look ...

Click to open image viewer. The Lunar Module Ascent Engine was used to lift up the ascent stage of the Lunar Module (LM) from the surface of the Moon and then dock with the Command Module (CM) ...

Click to open image viewer. 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 ...

If you’ve watched a Saturn V launch, you’ve probably seen how a large rocket will often jettison a stage on the way up. There are several reasons for this — there is no reason to haul an empty fuel ...