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Could Sweating Spacecraft Make Re-Entry Easier?

Could Sweating Spacecraft Make Re-Entry Easier?

When ISS astronauts return home, they have a hot ride back to Earth's surface. It's been that way since the beginning of human spaceflight to orbital space and beyond. The incoming vehicle uses friction with Earth's atmosphere to slow down to a safe landing speed. The "hot ride" part comes because that friction builds up high temperatures on the spacecraft's "skin". Without protection, the searing heat of atmospheric re-entry could destroy it. This same heating happens to incoming meteoroids as they whip through Earth's atmosphere.

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