China's Out-of-Control Rocket Plunges Out of Orbit, Crashes Into Ocean

Джерело:
Slashdot

Дата публікації:
09/05/2021 09:34

Постійна адреса новини:
http://www.vsinovyny.com/7832699

China's Out-of-Control Rocket Plunges Out of Orbit, Crashes Into Ocean

09/05/2021 09:34 // Slashdot

An out-of-control Chinese rocket plunged out of orbit and reentered Earth's atmosphere in the Indian Ocean (just west of the Maldives), reports CNN, citing China's space agency: Most of the rocket was "destroyed" on reentry to the atmosphere, the space agency said. The rocket, which is about 108 feet tall and weighs nearly 40,000 pounds, had launched a piece of a new Chinese space station into orbit on April 29. After its fuel was spent, the rocket had been left to hurtle through space uncontrolled until Earth's gravity dragged it back to the ground. Generally, the international space community tries to avoid such scenarios. Most rockets used to lift satellites and other objects into space conduct more controlled reentries that aim for the ocean, or they're left in so-called "graveyard" orbits that keep them in space for decades or centuries. But the Long March rocket is designed in a way that "leaves these big stages in low orbit," said Jonathan McDowell, an astrophysicist at the Astrophysics Center at Harvard University. In this case, it was impossible to be certain exactly when or where the booster would land. The European Space Agency had predicted a "risk zone" that encompassed "any portion of Earth's surface between about 41.5N and 41.5S latitude" — which included virtually all of the Americas south of New York, all of Africa and Australia, parts of Asia south of Japan and Europe's Spain, Portugal, Italy and Greece. The threat to populated areas of land was not negligible, but fortunately the vast majority of Earth's surface area is consumed by oceans... The rocket is one of the largest objects in recent memory to strike the Earth after falling out of orbit, following a 2018 incident in which a piece of a Chinese space lab broke up over the Pacific Ocean and the 2020 reentry of an 18-metric-ton Long March 5B rocket [also launched by China].

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