Expedition 51

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Began April 10, 2017; transitioned to Expedition 52 on June 2, 2017

First Part

Transferred from Expedition 50

Peggy Whitson*, NASA
     Commander
Oleg Novitskiy, Roscosmos
     Flight Engineer
Thomas Pesquet, ESA
     Flight Engineer

Launched: Nov 17, 2016, aboard Soyuz MS-03
Landed: June 2, 2017

Second Part

Docked April 20, 2017

Fyodor Yurchikhin, Roscosmos
     Flight Engineer
Jack Fischer, NASA
     Flight Engineer

Launched: April 20, 2017, aboard Soyuz MS-04
Landed: Sept. 3, 2017

* Whitson was given a three-month extension mid-flight. She flew into space Nov. 17, 2016, aboard Soyuz MS-03 and landed with the Soyuz MS-04 crew on Sept. 3, 2017.


— Statistics —

Max. crew size: 5
Started: April 10, 2017
Ended: June 2, 2017
Duration: 53 days
Orbits of Earth: ~830

Launch site: Baikonur Cosmodrome, Kazakhstan
Spacecraft: Soyuz-MS-03, Soyuz MS-04

Experiments conducted: ~90
Spacewalks: 2
Total spacewalk time: 6 hours, 59 minutes
Visiting vehicle arrivals: 1
Visiting vehicle departures: 0

 The Expedition 51 crew pose in for a group photo in the cupola window not long after the capture of the OA-7 Cygnus spacecraft. Credit: NASA

The Expedition 51 crew pose in for a group photo in the cupola window not long after the capture of the OA-7 Cygnus spacecraft. Credit: NASA


— Mission Summary —

Over two months, the five-person crew — NASA astronauts Peggy Whitson and Jack Fischer; Russian cosmonauts Oleg Novitskiy and Fyodor Yurchikhin; and European Space Agency astronaut Thomas Pesquet — oversaw two spacewalks and a single cargo ship arrival. Additionally, among the dozens of experiments performed during their stay the crew studied the microorganisms present aboard the ISS and measured the charges of cosmic rays.


— Major Events —

Soyuz MS-02 departure, Expedition 51 begins

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OA-7 Cygnus arrives

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Soyuz MS-04 arrives

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US EVA-42 and US EVA-43

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Soyuz MS-03 leaves, Expedition 52 ends

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— News —

Derek Richardson

I am a space geek who loves to write about space.

My passion for space ignited when I watched space shuttle Discovery leap to space on October 29, 1998. Today, this fervor has accelerated toward orbit and shows no signs of slowing down. After dabbling in math and engineering courses in college, I soon realized that my true calling was communicating to others about space exploration and spreading that passion.

Currently, I am a senior at Washburn University studying Mass Media with an emphasis in contemporary journalism. In addition to running Orbital Velocity, I write for the Washburn Review and am the Managing Editor for SpaceFlight Insider.