The Pentagon is tracking an out of control Chinese rocket expected to crash into Earth - CNET

The Chinese Long March 5B rocket launched Tianhe, the core module of the Chinese Space Station.

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It sounds like the plotline for a Bruce Willis movie: The Pentagon said in a statement Tuesday that it's tracking a large Chinese rocket that is out of control and expected to reenter Earth's atmosphere this weekend. The US Space Command is tracking the trajectory, Defense Department spokesperson Mike Howard said in a statement cited by CNN and expects the Chinese Long March 5B rocket's appearance "around May 8."

Howard said the rocket's exact entry point won't be known until within hours of reentry, but that daily updates on its location will be provided at the Space Track website.

Aerospace.org is also tracking the rocket, and as of Tuesday evening, was predicting a May 8 arrival, around 9:30 p.m. PT -- though predictions may change.

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But don't panic. Jonathan McDowell, an astrophysicist at the Astrophysics Center at Harvard University, told CNN, "the risk that it will hit you is incredibly tiny. And so I would not lose one second of sleep over this." 

Because the Pacific Ocean covers so much of the Earth, the debris will likely splash down in Pacific waters somewhere, he said.

McDowell also adjusted the time period when the debris is expected to arrive to between May 8 and 10.

This morning's data on the altitude-versus-time of the Tianhe / CZ-5B objects. The core stage orbit continues to slowly decay as expected. pic.twitter.com/E8EPJ9yzRu

— Jonathan McDowell (@planet4589) May 4, 2021

The rocket helped launch Tianhe, the core module in China's new, next-generation space station, on April 28. The space base is scheduled to be completed late in 2022 to serve as a scientific research outpost for China over the next decade, and the only other operational space habitat outside of the International Space Station. 

And what goes up, must come down.

Back in 2018, similar events took place, when China's out-of-control Tiangong-1 space station re-entered the atmosphere over the ocean near Tahiti. No one was injured, and the debris either burned up or found a new home on the floor of the south Pacific.

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