|Mission type||ISS Expedition|
|Space Station||International Space Station|
|Began||27 April 2012, 08:15UTC|
|Ended||1 July 2012, 04:48UTC|
|Arrived aboard||Soyuz TMA-03M|
|Departed aboard||Soyuz TMA-03M|
Joseph M. Acaba
(l-r) Acaba, Padalka, Revin, Kuipers, Kononenko and Pettit
Expedition 31 was the 31st long-duration expedition to the International Space Station (ISS). It began on 27 April 2012 with the departure from the ISS of the Soyuz TMA-22 spacecraft, which returned the Expedition 30 crew to Earth. The expedition ended on 1 July 2012, when crew members Oleg Kononenko, André Kuipers and Don Pettit departed from the ISS aboard Soyuz TMA-03M, marking the beginning of Expedition 32.
(April 2012 to May 2012)
(May 2012 to July 2012)
|Commander||Oleg Kononenko, RSA|
|Flight Engineer 1||André Kuipers, ESA|
|Flight Engineer 2||Don Pettit, NASA|
|Flight Engineer 3||Joseph M. Acaba, NASA|
|Flight Engineer 4||Gennady Padalka, RSA|
|Flight Engineer 5||Sergei Revin, RSA|
Expedition 31 formally began on 27 April 2012, with the departure from the ISS of the Soyuz TMA-22 spacecraft. Soyuz TMA-22 successfully returned Expedition 30 astronauts Dan Burbank, Anton Shkaplerov and Anatoli Ivanishin to Earth. The ISS was left under the command of astronauts Kononenko, Kuipers and Pettit, who had arrived at the station aboard Soyuz TMA-03M on 23 December 2011.
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SpaceX's unmanned Dragon spacecraft conducted a test rendezvous with the ISS during Expedition 31, as part of NASA's Commercial Orbital Transportation Services program; it was the first commercial spacecraft to rendezvous with the ISS. Following a series of delays, Dragon launched on 22 May 2012, and berthed successfully with the ISS on 25 May, after conducting a series of orbital test manoeuvres. Dragon carried around 544 kilograms (1,199 lb) of cargo to the ISS, including food, clothing, a laptop computer and 15 student experiments. After being loaded with 660 kilograms (1,460 lb) of downmass cargo, including completed experiments and redundant equipment, it undocked from the station and returned to Earth on 31 May 2012. Dragon landed intact in the Pacific Ocean and was successfully recovered, allowing SpaceX to begin regular cargo flights to the ISS. The first such logistics mission, CRS SpX-1, launched successfully in October 2012.
Soyuz TMA-03M departed from the ISS on 1 July 2012, successfully returning Kononenko, Kuipers and Pettit to Earth. Their departure marked the formal end of Expedition 31, and the beginning of Expedition 32.
Soyuz TMA-22 departs the ISS on 27 April 2012, marking the beginning of Expedition 31.
An Orthodox priest blesses the Soyuz rocket on 14 May 2012.
The Expedition 31 crew wave goodbye before the launch on 15 May 2012.
The launch of Soyuz TMA-04M on 15 May 2012.
SpaceX's unmanned Dragon spacecraft approaches the ISS on 25 May 2012.
Expedition 31 posing inside the docked Dragon capsule on 29 May 2012.
This article incorporates public domain material from websites or documents of the National Aeronautics and Space Administration.
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