It was the demolition heard around North Alabama.
Two historic structures at NASA’s Marshall Space Flight Center on Redstone Arsenal were demolished Saturday. The test stands – the Dynamic Test Facility and the Propulsion and Structural Test Facility – were brought down by what the agency called “carefully coordinated” implosions.
Crews had previously demolished the Neutral Buoyancy Simulator, a facility built in the late 1960s that enabled astronauts and researchers to experience near-weightless conditions. The simulator, which had been closed since 1997, was once conduct underwater testing of space hardware and practice runs for the Hubble Space Telescope…