Chinese astronauts complete their longest spacewalk outside Tiangong space station

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In short: The longest ever spacewalk by Chinese astronauts has been completed off China's Tiangong space station. The longest ever spacewalk by Chinese astronauts has been completed off China's Tiangong space station. Two astronauts spent the eight-and-a-half hour mission completing the installation of a space debris protection device. Two astronauts spent the eight-and-a-half hour mission completing the installation of a space debris protection device. The US holds the record for the longest ever spacewalk which was eight hours and fifty-six minutes. Chinese astronauts have completed the country's longest space walk, spending eight-and-a-half hours outside Tiangong space station. The Sate Council...