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Story summary
- NASA has banned Chinese researchers from its programs due to national security concerns amid U.S.-China space competition.
- The policy, effective since early September, denies access to NASA facilities for Chinese nationals, even with valid U.S. visas.
- This decision follows espionage incidents and aims to prevent sensitive technology leaks.
- NASA plans to return astronauts to the Moon by 2027, while China targets a lunar presence by 2030.
- The ban complicates future international collaboration and reflects a strategy to maintain U.S. technological superiority in space.
