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Private Space Stations: A New Era Dawns After the ISS
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The impending retirement of the International Space Station (ISS) is spurring investment and development in commercially owned and operated space stations, marking a notable shift in humanity’s access to low Earth orbit.
Published: December 23, 2023
The End of the ISS and the Need for Successors
The international Space Station, a collaborative project involving five space agencies (NASA, Roscosmos, JAXA, ESA, and CSA), has been continuously inhabited as November 2000. However, its operational lifespan is nearing its end. NASA currently plans to decommission the ISS around January 2031 [NASA ISS Deorbit Plan], creating a critical gap in low Earth orbit (LEO) capabilities.
This planned decommissioning has fueled a surge in private sector initiatives to develop and launch commercial space stations. These stations are envisioned to support a range of activities,including research and development,manufacturing in microgravity,space tourism,and in-space servicing.
Leading Commercial Space Station Projects
Several companies are actively pursuing the development of commercial space stations. Here’s a look at some of the key players:
Starlab
Starlab, a project led by Nanoracks in partnership with Voyager Space and Lockheed Martin, aims to be a continuously crewed commercial space station. [Nanoracks Starlab Website] It received a $160 million contract from NASA in December 2021 as part of the agency’s Commercial LEO Destinations (CLD) program. [NASA CLD Program Selection] Starlab is designed to accommodate up to four astronauts and is expected to be operational by the late 2020s.
Orbital Reef
Orbital Reef, developed by Blue origin and Sierra Space, is another prominent contender.[Orbital Reef Website] This station is designed to be a multi-use space business park,offering facilities for research,manufacturing,and tourism. It also received funding through the NASA CLD program. Orbital Reef is envisioned as a larger, more versatile station than Starlab, with the potential to host a significant number of crew and visitors.
Axiom Station
Axiom Space is taking a phased approach, starting with private missions to the ISS and then adding modules to the ISS before eventually separating into a free-flying station. [Axiom Space Station Website] Axiom Station is designed to be a next-generation orbital platform, focusing on research, manufacturing, and commercial opportunities. They have already sent multiple all-private crews to the ISS. [Spaceflight Now – Axiom Mission 3 Return]
What This Means for the Future of Space Exploration
The transition to commercially operated space stations represents a fundamental shift in the economics and accessibility of space. NASA’s strategy is to become one of many customers for these stations, rather than being the sole operator. This approach is intended to foster innovation and reduce costs.
The availability of multiple commercial stations will also create new opportunities for businesses and researchers. Microgravity research, which is arduous and expensive to conduct on Earth, will become more accessible. The development of new materials, pharmaceuticals, and manufacturing processes in space could have significant benefits for society
