Expedition Six Crew

Expedition Six Commander Kenneth Bowersox, center, is flanked by Flight Engineers Donald Pettit, left, and Nikolai Budarin.

Backup Crewmember Assigned to Expedition Six

Read Expedition Six NASA ISS Science Officer Don Pettit's latest Space Chronicle, "Homeward Bound," from aboard the International Space Station.

Also, narrated videos are posted in the Expedition Six video gallery.

Ask the ISS Crew Answers.

View an interactive for a brief overview of the science taking place on the International Space Station.

Expedition Five Crew Expedition Five crewmembers (from left) Commander Valery Korzun and Flight Engineers Peggy Whitson and Sergei Treschev.

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