ManXoi on Instagram: "Follow us @exploretheworld.01 😱for explaining concept When Endeavour reentered Earth's atmosphere, its skin was not metal, it was covered in 24000 plus thermal protection tiles designed to survive the extreme heat of reentry. As the orbiter plummeted at Mach 25, friction with the atmosphere created plasma around the shuttle, with temperatures exceeding 1500°C (2732°F). Aluminum, which makes up much of the shuttle's structure, melts at only 660°C, so NASA engineered a uniqu