The orbital handover: how command shifted on the International Space Station
In short: When the Soyuz TMA-16M undocked from the International Space Station, it carried more than just a departing crew. It marked a pivotal transition in command, passing the reins of our orbital outpost from a record-breaking cosmonaut to a pioneer of long-duration spaceflight.
On September 5, a formal ceremony aboard the International Space Station marked the end of Expedition 44. Gennady Padalka of the Russian Federal Space Agency (Roscosmos) officially handed over command of the station to NASA’s Scott Kelly. This transition occurred as the station prepared for the arrival of Expedition 45, led by Kelly alongside Russian cosmonaut Mikhail Kornienko. The station's crew expanded to nine members during this period, all participating in diverse microgravity science experiments. This large group worked to advance our understanding of the orbital laboratory's capabilities.
Using the Soyuz TMA-16M, the departing team—comprising Padalka alongside ESA's Andreas Mogensen and Kazakh Space Agency's Aidyn Aimbetov—got ready for their descent to Earth. Padalka’s departure was particularly significant; his fifth mission brought his cumulative time in space to a record 879 days. The Soyuz spacecraft undocked at 5:29 p.m. EDT, with the hatch closing at 2:17 p.m. EDT. The return journey included Sergey Volkov, who arrived on the station alongside the visiting crew members. This group prepared for their landing in Kazakhstan, which was scheduled for September 12, Kazakh time.
While the handover signaled a change in leadership, the scientific mission remained continuous. Kelly and Kornienko were nearing the halfway mark of a year-long mission, a period dedicated to gathering critical biomedical data. This research into human health in microgravity is essential for the future planning of crewed missions to Mars. Simultaneously, the station's altitude was increased by a Russian resupply ship to accommodate upcoming Soyuz and Progress missions, ensuring the station remains ready for the next generation of orbital arrivals. As the crew prepared for their return, they also managed a new space shipment expected in early October. This logistics cycle is part of the ongoing effort to sustain the station's complex operations.
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Sources
- Summary by Intellect · source: Expedition 44 Hands Over the Space Station to Expedition 45
- Also: Expedition 44 News Releases - NASA
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