K. Megan McArthur (USA)
Mission: STS125 Atlantis (11 May 2009 – 24 May 2009)

Nicole Stott (USA)
Mission: STS128/Expedition 20/21 (28 August 2009)
Mission: STS129 Atlantis (27 November 2009)
Mission: STS133 Discovery (24 February 2011 – 09 March 2011)

Dorothy Metcalf Lindenburger (USA)
Mission: STS131 Discovery (05 April 2010- 20 April 2010)
– Dorothy is a Mission Educator Specialist

Naoko Yamazaki (Japan)
Mission: STS131 Discovery (05 April 2010- 20 April 2010)

Shannon Walker (USA)
Mission: Soyuz TMA19/Expedition 24/25 (15 June 2010 – 26 November 2010)

Samantha Cristoforetti (Italy)
Planned Mission: Expedition 42/43 (November 2014 – March 2015)

Jeanette J Epps (USA)
Qualified as an astronaut in 2011. No planned missions as yet.

Serena Aunon (USA)
Qualified as an astronaut in 2011. No planned missions as yet.

Kathleen Rubins (USA)
Qualified as an astronaut in 2011. No planned missions as yet.