Serena Auñón-Chancellor

Auñón's father is Jorge Auñón, a Cuban exile who arrived in the United States in 1960; her mother is Margaret Auñón.

Auñón-Chancellor is married to physicist Jeff Chancellor and has a step-daughter (from her husband's previous marriage).

Auñón-Chancellor is a licensed amateur radio operator with the call sign of KG5TMT.

Serena Maria Auñón-Chancellor (born April 9, 1976) is an American physician, engineer, and NASA astronaut.

She visited the ISS as a flight engineer for Expedition 56/57 on the International Space Station.

Auñón-Chancellor attended Poudre High School in Fort Collins, Colorado.

She holds a B.S. degree in Electrical Engineering from George Washington University, an M.D. from the University of Texas Health Science Center at Houston (UTHealth) in 2001, and an M.P.H. degree from the University of Texas Medical Branch (UTMB) in 2006.

She completed a three-year residency in internal medicine at UTMB in Galveston, Texas, in 2004, and then completed an additional year as Chief Resident.

She also completed an aerospace medicine residency at UTMB.

She is board-certified in Internal Medicine and Aerospace Medicine.

Auñón-Chancellor was hired by NASA as a flight surgeon and spent over nine months in Russia supporting medical operations for International Space Station astronauts.

She received the 2009 Julian E. Ward Memorial Award from the Aerospace Medical Association for her contributions to spaceflight crewmember clinical care and development of medical kits to support launch and landing in Kazakhstan.

Auñón-Chancellor was selected as an astronaut candidate in June 2009.

As part of her training, she spent two months in Antarctica from 2010 to 2011 as part of the ANSMET (Antarctic Search for Meteorites) expedition.

The ANSMET expedition consisted of a 9-member systematic team and a 4-member reconnaissance team that explored new areas where future teams may go.

Collectively they returned over 1200 meteorites.

She served as the deputy crew surgeon for STS-127 and Expedition 22.

She also serves as the deputy lead for Orion – Medical Operations.

She completed the astronaut candidacy training program in 2011.

In June 2012, Auñón piloted a DeepWorker 2000 submersible as part of the NASA/NOAA NEEMO 16 underwater exploration mission off Key Largo, Florida.

In July 2015, Auñón-Chancellor participated as an aquanaut in the NEEMO 20 crew.

She earned her Technician Class license and was granted her callsign by the Federal Communications Commission (FCC) on June 2, 2017.

During the final weeks of her ISS mission, Auñón-Chancellor made random (unscheduled) ham radio contacts from the ISS, generally as the ISS made its Saturday morning and early afternoon (US Time) passes over the US.

Auñón-Chancellor has received the following awards and honors:

In 2018 she spent 196 days 17 hours 49 mins in space aboard the ISS as part of Soyuz MS-09 (Expedition 56/57).

She represented NASA and the USA as Flight Engineer 1 from 6 June 2018 to 20 December 2018.

Aunon-Chancellor is a Management Astronaut and covers medical issues and on-orbit support in the Astronaut Office.

In January 2020, she released a study on an unnamed astronaut who had to treat their own deep vein thrombosis on the International Space Station.

In 2021 Russian state-owned news service TASS published accusations from an anonymous source claiming Auñón-Chancellor had an emotional breakdown in space and sabotaged the Soyuz spacecraft by drilling a hole in the module attached to the ISS during Expedition 56 in 2018.

No evidence implicating Auñón-Chancellor was given.

The accusation was denied by NASA, and came during a period of increasingly poor relations between NASA and the Russian space agency following the near-disastrous uncontrolled thruster firing of Russia’s Nauka ISS module.

Auñón-Chancellor's research is concerned with the medical implications of space radiation exposure, including computer modelling of the radiation environment of a crewed orbiting spacecraft.