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Soyuz-TMA 21



Soyuz-TMA 21, a Russian manned satellite, was launched from Baikonur on 04 April 2011 at 22:18 UT by a Soyuz rocket. The Soyuz-TMA 21 spacecraft carried a crew of three and docked with the International Space Station (ISS) Poisk module on 06 April at 23:09 UT. The crew consisted of two Russian cosmonauts and one American astronaut. They have an expansive research program encompassing more than 40 experiments, and will also make a spacewalk to service the Russian segment of the ISS. In the course of that walk, a Radioskaf 2 Kedr space probe designed by Russian students will be launched. The Russian space agency, Roskosmos, officially dedicated the Soyuz-TMA 21 launch to the pioneering mission of Yuri Gagarin on 12 April 1961.

Alternate Names

  • 37382
  • Soyuz-TMA21

Facts in Brief

Launch Date: 2011-04-04
Launch Vehicle: Soyuz
Launch Site: Tyuratam (Baikonur Cosmodrome), Kazakhstan

Funding Agency

  • Unknown (Russia)


  • Resupply/Refurbishment/Repair
  • Human Crew

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

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