Conceptual view of the Orbital Reef space station. Image: Sierra SpaceThe scheduled retirement of the International Space Station in 2030 has put NASA under a lot of pressure to secure a replacement. The space agency has tapped several private companies to develop a solution, with a collaborative project from Blue Origin and Sierra Space recently passing a critical milestone. NASA, along with members from Sierra Space and Blue Origin, performed the Orbital Reef System Definition Review (SDR) in June and July. The space…
