Discovery Channel When We Left Earth- The Nasa Missions (4DVD set) By Movies & TV / DVD Movies/TV UPC: 743252530658 / Publisher: Discovery Communications, January 2008 Price Starting at $9.99 Free Shipping Send to a friend Add to Wishlist Below is a list of products arranged by condition. Select the quantity of the product you desire and click the "Add" button. New - New Brand New! DVD. Case New. Shrink wrapped! Slipcase New. 4 disc set. Quality guaranteed! In original artwork/packaging unless otherwise noted. $16.85 1 in Stock at Warehouse Quantity Add Used - Very Good Very Good condition. dvd. Case Very Good. Slipcase Very Good. 4 disc set. Quality guaranteed! In original artwork/packaging unless otherwise noted. $9.99 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.