Dr. Serena M. Auñón-Chancellor began working with NASA as a Flight Surgeon in 2006. In 2009, she was selected as a NASA astronaut. During her NASA career, Dr. Auñón-Chancellor spent more than nine months in Russia supporting medical operations for International Space Station crew members in Star City. She also served as Deputy Crew Surgeon for STS-127 and is board certified in both Internal and Aerospace Medicine.
Serena most recently served as Flight Engineer on the International Space Station for Expedition 56 and 57.