An Asian studies expert and amateur satellite tracker have voiced their concerns over the possibility that China’s Tiangong-1 space station may be de-orbiting without control from the ground. The station, launched in 2011, was a temporary testbed for the technologies for Tiangong-2, a permanent station scheduled to be launched in September of this year. Beijing's original plan was to de-orbit the spacecraft in 2013, but Tiangong-1, Chinese for "Heavenly Palace 1", remained in orbit after that date, conducting long-term endurance tests of the now unmanned station's components.
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