Chiao and Sharipov docked at the Space Station on 16 October 2004 aboard Soyuz TMA-5, to relieve Expedition 9 crewmates Mike Fincke and Gennady Padalka. Chiao was the expedition commander and NASA science officer, and Sharipov was the Soyuz commander and flight engineer. Both Astronauts were researchers in the Advanced Diagnostic Ultrasound in Microgravity Project.
Notable accomplishments included replacing critical hardware in the Quest Joint Airlock; repairing U.S. spacesuits; and submitting a scientific research paper on ultrasound use in space. Chiao was also the first astronaut to vote in a U.S. Presidential election from space.
