This is some cool footage I stumbled across: test-firing of #SpaceShuttle Columbia's main engines with the complete stack (orbiter, external tank, solid rocket boosters) on the launch pad, almost like in #SpaceCampTheMovie. I know #ThermalCurtainFailure wasn't real, but I didn't realize they had actually fired up the main engines on the pad. https://www.youtube.com/watch?v=8aVDp6sRJe0