Orbital Reef
The proposed Orbital Reef station can be expanded over time by adding more modules, but initially will be about one-third the size depicted here.

NASA’s safety advisers warn that the agency’s efforts to transition from the International Space Station to commercial space stations without a gap are on a “precarious trajectory.”

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Jeff Foust has more than a decade of experience writing about space policy, entrepreneurial ventures and regulatory affairs. In 2001, he established spacetoday.net to aggregate and summarize the day's space-related news stories. In 2003, he started The...