usagov:

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.

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