Image description: The Space Shuttle Enterprise was towed atop a barge on the Hudson River on its way to the Intrepid Sea, Air, and Space Museum in New York in June.

Photo by NASA.

Image description: All six space shuttle main engines from Endeavour’s STS-134 and Atlantis’ STS-135 missions sit in test cells inside the Engine Shop at NASA’s Kennedy Space Center in Florida. For the first time, all 15 shuttle main engines are in the shop at the same time, being prepped for shipment to NASA’s Stennis Space Center in Mississippi, where they are being repurposed for use on NASA’s next generation heavy lift rocket, the Space Launch System.

Photo by NASA.

Image description: At 5:57 a.m. EDT on July 21, 2011, space shuttle Atlantis landed for the final time at NASA’s Kennedy Space Center after 200 orbits around Earth and a journey of 5,284,862 miles on the STS-135 mission and final flight for the Space Shuttle Program.

Photo by NASA