Expedition 24

Expedition 24 was a 2010 International Space Station resident increment commanded by Roscosmos cosmonaut Aleksandr Skvortsov. The increment began when the Soyuz TMA-17 crew departed on June 2, leaving Skvortsov, Tracy Caldwell Dyson, and Mikhail Kornienko aboard the station after their Expedition 23 handover. Soyuz TMA-19 arrived later in June with Fyodor Yurchikhin, Shannon Walker, and Douglas Wheelock, restoring the ISS to a six-person crew. During the expedition, the crew supported station science, Progress cargo operations, and the relocation of Soyuz TMA-19 from Zvezda to the newly delivered Rassvet module. A July Russian-segment EVA by Yurchikhin and Kornienko prepared Rassvet for future automated dockings. In August, a pump module failure in the station's cooling system led to three U.S. EVAs by Wheelock and Caldwell Dyson to remove and replace the failed hardware. Expedition 24 ended when Skvortsov, Caldwell Dyson, and Kornienko returned to Earth on Soyuz TMA-18, while the Soyuz TMA-19 crew continued into Expedition 25.