3 Chinese astronauts now stranded in ***** e following successful rescue of colleagues

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Three more Chinese astronauts, or taikonauts, are now marooned in ***** e following the successful return of their previously stranded comrades. The latest development highlights a potential flaw in China's ***** e protocols, experts say, which could put astronauts needlessly at risk.
The latest stranded trio — Zhang Lu, Wu Fei and Zhang Hongzhang — are the crew of the Shenzhou-21 mission. They have be