Taking These 50 Objects Out of Orbit Would Cut Danger From Space Junk in Half

“In their precipitation to move quickly, they add to the risk of long -term collision,” said McKnight.

The deputy chief of the Chinese national space agency, Bian Zhigang, spoke on Monday at the International Astronautical Congress. He was asked about China’s commitment to good management of the space environment. Bian recognized a “very serious challenge” in this area, “in particular with megaconstellations”. He did not mention the problem of China by leaving orbit rockets.

Bian said that China is “currently researching” how to remove spatial debris from orbit. One of the missions claims that China has tested the techniques of attenuation of space debris has moored several spacecrafts in orbit, but American officials consider it a military threat. The same basic technologies necessary for cleaning space debris – catering and mooring systems, robotic weapons and automation on board – could be used to cling to an opponent’s satellite.

Silver lining

McKnight and its co-authors (the United States, the United Kingdom, Italy, Japan and Russia) made an additional effort to assess how the threat of space debris would change if some of the most dangerous objects fell from the list. He said the results are promising.

“If you withdraw 10 of the objects, you reduce it by 30%,” said McKnight. “It is a measurable change. I think that is what is missing in the past to justify the deletion of active debris.”

Active elimination of debris is an elusive proposal. Although it is technically possible, as many missions have shown, there is the question of which pays. Is there a viable market for space debris cleaning services? The European space agency and the Japanese space agency have invested in low financing levels in debris moving initiatives. One of these projects, led by a Japanese company named astroscale, finished a successful demonstration last year to prepare the ground for a future attempt to dock with a deceased Japanese rocket and bring it back to the atmosphere.

Astroscale was founded in 2013 in order to rid the low orbit of the space junk. Carrying out the limited market for these missions, the company has pivoted to also continue the technology of satellite service and supply services.

“We can have a measurable impact on the potential for debris generation and the starting potential of Kessler syndrome by removing 10 or 20 objects,” said McKnight. “The bad news is that we have just added 26 new objects in the past two years.”

This story originally appeared on Ars Technica.