This almost certainly won’t happen to the ISS. At the same time, it’s a far more extreme version of the only way an American space station has ever come down. In 1979, after years spent vacant in orbit, Skylab, the US’s first space station, started sinking toward the atmosphere, where it threatened to fall and drop molten spacecraft parts on Earth. At that point, NASA officials had to remotely wake up its computers and, with only limited control of the station, direct it over a location that would endanger the fewest humans.
Speaking to CBS last month, Suni Williams said: "I'm looking forward to seeing my family, my dogs and jumping in the ocean. That will be really nice - to be back on Earth and feel Earth."
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结语Sun City的医养结合模式，之所以能成为标杆，核心不是“投入多”，而是“找对了逻辑”：
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