The Chumps
Front row, from the left to right: Jeremy Hansen, Scott D. Tingle, Michael S. Hopkins, Gregory R. (Reid) Wiseman and Mark T. Vande Hei. Middle row, from the left to right: Jack D. Fischer, Serena M. Auñón, Kathleen (Kate) Rubins and Jeanette J. Epps. Back row, from the left to right: David Saint-Jacques, Takuya Onishi, Norishige Kanai, Kimiya Yui and Kjell N. Lindgren
Year selected	2009
Number selected	14
← 2004 2013 →

NASA Astronaut Group 20 (The Chumps)^[1] saw the training of nine mission specialists, and five international mission specialists to become NASA astronauts. These 14 astronauts began training in August 2009 and officially graduated as astronauts on 4 November 2011.

Mission specialists

• Serena M. Auñón (1 flight)^[2]
  • Soyuz MS-09
    • Flight engineer, Expedition 56/57
• Jeanette J. Epps^[2]
  • SpaceX Crew-8
    • Mission specialist, Expedition 70/71
• Jack D. Fischer (1 flight)^[2]
  • Soyuz MS-04
    • Flight engineer, Expedition 52/53
• Michael S. Hopkins (2 flights)^[2]
  • Soyuz TMA-10M
    • Flight engineer, Expedition 37/38
  • Commander, SpaceX Crew-1
    • Flight engineer, Expedition 64/65
• Kjell N. Lindgren (2 flights)^[2]
  • Soyuz TMA-17M
    • Flight engineer, Expedition 44/45
  • Commander, SpaceX Crew-4
    • Flight engineer, Expedition 67/68
• Kathleen Rubins (2 flights)^[2]
  • Soyuz MS-01
    • Flight engineer, Expedition 48/49
  • Soyuz MS-17
    • Flight engineer, Expedition 63/64
• Scott D. Tingle (1 flight)^[2]
  • Soyuz MS-07
    • Flight engineer, Expedition 54/55
  • Commander, Starliner-1 (future flight)
• Mark T. Vande Hei (2 flights)^[2]
  • Soyuz MS-06
    • Flight engineer, Expedition 53/54
  • Soyuz MS-18/MS-19
    • Flight engineer, Expedition 64/65/66
• Gregory R. Wiseman (1 flight)^[2]
  • Former Chief of the Astronaut Office
  • Soyuz TMA-13M
    • Flight engineer, Expedition 40/41
  • Commander, Artemis II (future flight)

International mission specialists

• Jeremy Hansen, Canada^[3]
  • Mission specialist, Artemis II (future flight)
• Norishige Kanai, Japan (1 flight)
  • Soyuz MS-07
    • Flight engineer, Expedition 54/55
• Takuya Onishi, Japan (1 flight)
  • Soyuz MS-01
    • Flight engineer, Expedition 48/49
• David Saint-Jacques, Canada^[3] (1 flight)
  • Soyuz MS-11
    • Flight engineer, Expedition 58/59
• Kimiya Yui, Japan (1 flight)
  • Soyuz TMA-17M
    • Flight engineer, Expedition 44/45