The Tiangong space station is now complete, but a tumbling rocket stage endangered populations below
here’s a lot that China would like you to pay attention to when it comes to its just completed Tiangong space station—and there’s one thing the country would very much like you to ignore.
As for that bit the Chinese would just as soon you not discuss: There was another piece of hardware—a 10-story tall, 23-ton first stage of the Long March 5B—that reached space along with the Mengtian before beginning an uncontrolled, somersaulting plunge back to Earth causing it to land, well, no one could say where.
He continued: “They did not share specific trajectory information which is needed to predict landing zones and reduce risk. It is critical that all spacefaring nations are responsible and transparent in their space activities and follow established best practices, especially, for the uncontrolled reentry of … debris that could very well result in major damage or loss of life.”
Still, it remains not only provocative but perplexing that China doesn’t take greater precautions with its Long March 5 Bs. Disposing of a rocket stage safely, after all, is a relatively easy thing to do. As a rule, government and private sector launchers keep a reserve of fuel in the spent stage’s tanks so that its engine can re-fire, aiming it for a guaranteed oceanic splashdown. SpaceX goes further, landing the first stages on an ocean barge and reusing them.
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