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Sonntag, 2. Oktober 2022 - 07:02

Raumfahrt - US to establish new rules on hazardous ‘space junk’

2.10.2022

Rules will require operators to more quickly dispose of defunct satellites that are endangering spacecraft on active missions

The FCC says there are more than 4,800 satellites operating in orbit, and the vast majority are commercial low-Earth orbit satellites. Photograph: University of Southampton/PA

The US Federal Communications Commission (FCC) has voted to adopt new rules to address the growing risks of orbital debris – commonly known as space junk – posing a hazard to extraterrestrial exploration.

The government body will give US operators much tighter deadlines to get rid of defunct satellites whizzing uselessly around the planet and getting in the way of spacecraft on active missions.

The FCC voted to require post-mission disposal of low-Earth orbit satellites within five years. The agency previously recommended operators of satellites in low-Earth orbit ensure spacecraft re-enter Earth’s atmosphere within 25 years.

“It will mean more accountability and less risk of collisions that increase orbital debris and the likelihood of space communication failures,” the FCC chair, Jessica Rosenworcel, said.

The US telecommunications regulator noted that of 10,000 satellites deployed since 1957 more than half are no longer working.

“Defunct satellites, discarded rocket cores, and other debris now fill the space environment, creating challenges for current and future missions,” the FCC said.

This volume of junk not only makes future missions more expensive but could jeopardize some altogether if it gives investors the chills, the agency warned.

It noted that there are more than 4,800 satellites operating in orbit, and the vast majority are commercial low-Earth orbit satellites.

“The second space age is here. For it to continue to grow, we need to do more to clean up after ourselves so space innovation can continue to respond,” Rosenworcel said.

Nasa has funded several academic studies on space debris, and a bipartisan group of senators has introduced legislation “to jumpstart the development of debris removal technology in the United States”, the FCC commissioner Geoffrey Starks said.

He said the new rule “will bend the curve of debris proliferation. It also will reduce collisions and free up resources that would otherwise go toward trying to avoid them.”

Starks warned that “without a safe operating environment, debris risk could escalate from a financial afterthought to a hazard that makes investors think twice, and could complicate operations in a way that slows or limits new space endeavors while driving up per-mission costs.”

Quelle: The Guardian

Raumfahrt - US to establish new rules on hazardous ‘space junk’

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