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Space experts blame China for “playing odds” in a “faulty” and uncontrollable rocket re-entry

Hong Kong- Criticism is pouring into China after the wreckage of an uncontrollable Long March rocket Crashed in the Indian Ocean on Sunday.

“It’s clear that China doesn’t meet responsible standards for space debris,” said NASA administrator, former astronaut and senator Bill Nelson. “Spaceflight nations need to minimize the risk to people and property on Earth from the re-entry of space objects and maximize the transparency of their operations.”

The huge 100-foot, 20-ton hull of the Long March 5B caused global concern last week as it orbited the Earth at 18,000 mph (once every 90 minutes). The rocket exploded from Hainan Island, south of China, on April 29, successfully transporting the first module. China’s new space station In orbit.

Experts told Rummy Innosensio that the failure was in the design of the rocket, which was rooted in the will of Chinese space program officials.

China announces space station core module Tianhe
On April 29, 2021, the Long March 5 Y2 rocket equipped with the core module of Tiangong, a Chinese space station, was launched from the Wenchang spacecraft launch site in Wenchang, Hainan Province, China.

VCG / VCG via Getty


“It was their negligence to design the rocket this way,” Harvard Smithsonian astrophysicist Jonathan McDowell told .

“It leaves a huge 20-ton rocket stage in low earth orbit, and that’s what we usually don’t do for large rocket stages. We usually make sure they don’t go into orbit. They have an engine restart so they can drop them into a controlled location, but without it, if it just dies after delivering the payload into orbit, it’s random. You’ll be blamed for entering at some point like a week or so later on Earth, and that’s exactly what happened. “

McDowell said the Chinese space force had other options for lowering rockets in a controlled manner. The future Chinese space station modules they were launching also have their own engines.

“If you shut down the engines of a large rocket a few seconds early, then fire the engines of those space stations a bit and make a few tweaks to the last few orbits, about a quarter ton of rocket fuel will be used. That is, they would have to refuel the space station a little earlier than other plans, but it doesn’t seem like they wanted it. ”

“China is responsible for this,” agreed Bill Harwood, space analyst at in Cape Canaveral, Florida.

“They need a propulsion system that can turn the rocket body back into the atmosphere. They clearly know how to do this. The Chinese land a spacecraft on the moon. They are preparing. The lander on Mars. They have a very sophisticated space program, “Harwood said. “It’s a bit of a mystery why this isn’t something that isn’t done on all of their rockets. It should be.”


Rocket wreckage flies to Earth

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China’s decision led to international unrest prior to Sunday’s splashdown. Space experts said the timing of re-entry into the Earth’s atmosphere and the potential impact of unburned debris can only be seen for hours.

The final blurry image of the rocket on social media shows the rocket rolling over Jordan and Oman, followed by debris from the U.S. and China’s Space Command in the small tropical archipelago of the Maldives. The islands were reported to have fallen into the surrounding water.

“What they are doing is alarming,” McDowell said. “China was just playing the odds. They said,” Yeah, this is a big stage. It will re-enter without control. That’s okay. If we take the risk and hit something Pays compensation. “It is not the standard for space agencies around the world. ”

The wreckage of the Long March 5B rocket fell on Earth for the second time in a year. In May 2020, a rocket of this type launched by China collapsed in Côte d’Ivoire, West Africa, and re-entered the Earth’s atmosphere out of control.

“People in Côte d’Ivoire were dissatisfied with the large amount of metal flying from the skies hundreds of miles per hour,” McDowell said.

China’s Foreign Ministry and state media have downplayed concerns about the second rocket from the beginning and criticized the Pentagon’s warnings and international coverage as “Western hype … not worth the hassle.”

McDowell predicted that China would continue to double by denying problems with the launch of the Long March rocket, but that it would eventually make a difference.

“It wouldn’t be constructive just to yell at the Chinese,” McDowell said. “I think working with them requires careful tidying up when working with them, rather than trying to do negative things like sanctions. The cosmic stage. There needs to be international debate over the next few years on how to manage the new space era we are in. ”

Space experts blame China for “playing odds” in a “faulty” and uncontrollable rocket re-entry

Source link Space experts blame China for “playing odds” in a “faulty” and uncontrollable rocket re-entry

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