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Expedition 70

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Expedition 70
NameExpedition 70
Mission typeInternational Space Station Expedition
Crew size7–10
Start date2024-10-...
End date2025-...
OrbitLow Earth orbit
SpacecraftSoyuz MS, SpaceX Crew Dragon, Progress, HTV-X
OperatorRoscosmos, NASA, European Space Agency, JAXA, CSA (space agency)

Expedition 70

Expedition 70 was an International Space Station long-duration increment involving multinational crews from Roscosmos, NASA, European Space Agency, JAXA, and the Canadian Space Agency that conducted microgravity research, technology demonstrations, and station maintenance during operations in low Earth orbit. The increment overlapped missions such as Soyuz MS rotations, Crew Dragon flights, and cargo resupply missions including Progress (spacecraft), HTV-X, and commercial logistics runs. Activities supported scientific programs tied to International Space Station research, cross-agency partnerships, and long-duration human spaceflight objectives relevant to Lunar Gateway and Artemis program preparations.

Background and Objectives

The increment followed earlier increments coordinated through NASA's Johnson Space Center, Mission Control Center (Moscow), and partner control centers in European Space Operations Centre, JAXA Tsukuba Space Center, and Canadian Space Agency facilities. Primary objectives included expanded investigations in life sciences such as studies linked to NASA Twins Study, biophysics experiments related to Protein Crystal Growth, and technology demonstrations for In-Space Manufacturing and Closed-loop life support. Operational goals emphasized maintenance of modules like Zvezda (ISS module), Harmony (ISS module), Columbus (ISS module), and upgrades connected to Tranquility (ISS module) and external payload accommodation on ExPRESS Logistics Carrier mounts. International objectives aligned with cooperation treaties exemplified by the Intergovernmental Agreement on Space Station Cooperation.

Crew and Mission Patch

The on-orbit contingent combined veteran cosmonauts and astronauts drawn from rosters of Roscosmos cosmonauts, NASA astronauts, ESA astronauts, JAXA astronauts, and CSA astronauts. Crew assignments referenced individuals who previously flew on Soyuz TMA and SpaceX Crew-6 through Crew-7 crews as well as participants from Expedition 69 and successor rotations. The mission patch incorporated iconography referencing Low Earth Orbit, the orbital inclination shared with STS-88 assembly heritage, and symbols evoking collaboration seen in earlier insignia such as those for Expedition 1 and Expedition 50. Patch designers included artists affiliated with NASA Public Affairs and partner agency design teams.

Launch, Docking, and Timeline

Launches supporting the increment used launch vehicles including Soyuz-2, Falcon 9, and heavy-lift resupply launchers from Tanegashima Space Center and Baikonur Cosmodrome. Dockings and berthings involved ports such as Rassvet, Poisk, Harmony nadir port, and the Nauka module zenith interface. Timeline milestones corresponded to orbital handovers mirroring procedures from earlier operations like Expedition 60 crew swaps and followed deconfliction practices adopted after incidents like Progress M-27M. Key timeline events included crew handovers, scheduled extravehicular activities analogous to spacewalks described in United States Extravehicular Activity records, and cargo transfers from HTV and Cygnus (spacecraft).

On-Orbit Activities and Experiments

Scientific activities encompassed life sciences, physical sciences, and applied technology demonstrations. Life sciences investigations related to human physiology drew upon heritage from Rodent Research and plant growth experiments similar to Veggie (ISS facility). Physical sciences experiments included combustion studies in facilities like Combustion Integrated Rack and materials research connected to Materials International Space Station Experiment. Technology demonstrations tested autonomous systems inspired by concepts in Robotic Refueling Mission and examined additive manufacturing approaches comparable to those in Made In Space demonstrations. Earth observation tasks leveraged instruments and targets from programs such as Earth Observing-1 heritage and coordinated observations aligned with Group on Earth Observations priorities.

Spacecraft and Station Operations

Operations involved coordination of visiting vehicles including HTV-X, Progress, Cygnus (spacecraft), Dragon (spacecraft), and crewed vehicles like Soyuz MS. Station operations required avionics checks, life-support maintenance of systems descended from Environmental Control and Life Support System developments, and thermal control activities on radiators consistent with protocols from International Space Station maintenance. Robotics tasks used the Canadarm2 and Dextre manipulators to support external payload installation and truss maintenance similar to procedures executed during STS-120 and other assembly missions. Logistics management referenced cargo stowage practices developed through Multilateral Stowage> operations.

Notable Events and Anomalies

Notable operational events included scheduled extravehicular activities for thermal or micrometeoroid damage repair, and contingency responses modeled on historic responses such as those following the Progress M-34 and STS-107 investigations for risk assessment. Anomalies, when they occurred, were investigated with participation from NASA Aerospace Safety Advisory Panel and agency technical boards at Roscosmos Central Research Institute and partner engineering centers. Publicly discussed incidents adhered to reporting norms exemplified by prior inquiries into Soyuz MS-10 and SpaceX Crew Dragon Demo-2 anomaly analyses.

Public Outreach and Legacy

Outreach leveraged education initiatives including live downlinks with institutions like the Smithsonian Institution, American Museum of Natural History, National Air and Space Museum, and school programs modeled after Student Spaceflight Experiments Program and Get Into Space partnerships. Media coverage referenced collaborations with broadcasters such as NASA Television, Roscosmos TV, and international networks that covered milestones similar to those during Expedition 50 and Expedition 61. The expedition’s legacy contributed to datasets informing Artemis program planning, international cooperation frameworks like the Intergovernmental Agreement on Space Station Cooperation, and technology maturation relevant to Lunar Gateway and commercial low Earth orbit initiatives.

Category:International Space Station expeditions