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NASA has issued a long-awaited request for proposals from private industry to design, build, and operate commercial space stations in low Earth orbit, marking a significant shift in how the agency plans to maintain its presence and conduct research in orbit. The move comes as NASA prepares for the eventual retirement of the International Space Station, seeking to transition to a market-driven approach for orbital infrastructure. The call represents NASA's commitment to maintaining continuous human access to low Earth orbit while reducing the agency's direct operational burden, allowing private companies to develop commercially viable space station concepts. This strategy aims to stimulate private investment in space infrastructure while ensuring NASA maintains its ability to conduct critical science and technology research in microgravity environments.