The United States is closely monitoring Chinese activities that potentially threaten American assets in space as debris rapidly accumulates in low earth orbit, the head of United States military operations in space says.
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Commander of US Space Command Army General James Dickinson also cheered the overwhelming passage in the United Nations of a resolution that countries do not conduct direct-ascent anti-satellite (ASAT) tests that create vast fields of space debris, which endanger satellites and space stations.
Of the four countries that have conducted such ASAT tests, the US was the only one that voted in favour, while China and Russia voted no and India abstained.
"We can't continue to contribute to the debris that we find in the space domain," Dickinson told reporters on a conference call.
Most of that debris lies in crucial low earth orbit, which has become "congested, competitive and contested", he said.
Even tiny metal shards can pose a danger and the number of objects is growing rampantly.
Space Command is now tracking more than 48,000 in near-earth orbit, including satellites, telescopes, space stations and pieces of debris of all sizes, up from 25,000 just three years ago, Dickinson said.
China in 2003 became the third government to send an astronaut into orbit on its own after the former Soviet Union and the US. Its program has advanced steadily since.
The Chinese space program drew rare international criticism after it conducted an unannounced test in 2007 in which it used a missile to blow up a defunct Chinese satellite, creating debris that continues to pose a hazard.
Beijing believes "space is a very important piece to not only their economic or the global economic environment but also the military environment, so we continue to watch that very closely as they continue to increase capabilities", Dickinson said.
The secretive Chinese program is run by the ruling Communist Party's military wing, the People's Liberation Army, precluding it from participating in the International Space Station or engaging in most forms of co-operation with NASA.
Proceeding with little outside help, China last month launched the last of three modules for its own space station, which briefly hosted six Chinese astronauts in space during a turnover of the three-person crew.
It also has rovers on the moon and Mars and is planning a crewed lunar mission in the future.
With US-China tensions high over Taiwan, the South China Sea, trade and technology, space is increasingly becoming a potential flash point.
In addition, the Pentagon last week released an annual China security report that warned Beijing would likely have 1500 nuclear warheads by 2035 and has not clarified how it plans to use them.
China continues to "build capabilities that, really quite frankly, hold most of our assets at risk in the space domain", Dickinson said.
He said Russia's invasion of Ukraine has further shown space to be a "contested domain that must be protected".
"It's a role that we at US Space Command take very seriously. I'm seriously focused on our pacing challenge, China," Dickinson said, using a description of Beijing that has become standard in the Pentagon.
"The unified stance of our allies and partners is critical in countering the coercion and subversion that threatens the international rules-based order here in the Indo-Pacific and beyond," he said.
Australian Associated Press
