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Russia Debates Orbit and Costs for Post-ISS Space Station. Anatoly Zak explains how Roscosmos faces a debate over the orbit of its new space station: a low-inclination 51-degree orbit or a more expensive near-polar orbit. The polar orbit offers strategic

Russia Debates Orbit and Costs for Post-ISS Space Station. Anatoly Zak explains how Roscosmos faces a debate over the orbit of its new space station: a low-inclination 51-degree orbit or a more expensive near-polar orbit. The polar orbit offers strategic
Update: 2025-10-17
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Russia Debates Orbit and Costs for Post-ISS Space Station. Anatoly Zak explains how Roscosmos faces a debate over the orbit of its new space station: a low-inclination 51-degree orbit or a more expensive near-polar orbit. The polar orbit offers strategic Arctic observation but increases radiation risk and reduces payload capacity. Economic realities may push Roscosmos toward the cheaper 51-degree orbit, possibly using existing ISS infrastructure, to ensure an operational station for cosmonauts by 2031.
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