Expedition 56

Expedition 56

Expedition 56 began June 3, 2018, and is expected to continue until Oct. 4, 2018. The six person crew — NASA astronauts Drew Feustel, Ricky Arnold and Serena Aunon-Chancellor; Russian cosmonauts Oleg Artemyev and Sergei Prokopyev; and European Space Agency astronaut Alexander Gerst — is tasked with performing experiments that study the behavior of atoms in extreme conditions, explore microbial growth aboard the outpost and other tests to expand navigation capabilities for future travel beyond low-Earth orbit.

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Expedition 55

Expedition 55

Expedition 55 began Feb. 27, 2018, and continued until June 3, 2018. Its six-person crew — NASA astronauts Scott Tingle, Drew Feustel and Ricky Arnold; Russian cosmonauts Anton Shkaplerov and Oleg Artemyev; and Japan Aerospace Exploration Agency astronaut Norishige Kanai — was tasked with performing experiments studying Earth’s atmosphere and the effect of microgravity on bone marrow in addition to materials sciences and biological sciences. The increment also saw several visiting vehicle arrivals and performed two spacewalks.

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Expedition 54

Expedition 54

Expedition 54 began Dec. 14, 2017, and continued until Feb. 27, 2018. The six-person crew consisted of Russian cosmonauts Alexander Misurkin and Anton Shkaplerov; NASA astronauts Mark VAnde Hei, Joe Acaba and Scott Tingle; and Japan Aerospace Exploration Agency astronaut Norishige Kanai. Over 2.5 months, the increment worked on science experiments that studied bacteria, the manufacture of fiber optics in microgravity, and gathered data about space debris in low-Earth orbit, to name a few. The crew also supported three spacewalks and oversaw the arrival and departure of a couple cargo spacecraft.

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Expedition 53

Expedition 53

Expedition 53 began Sept. 2, 2017, and continued until Dec. 14, 2017. Consisting of NASA astronauts Randy Bresnik, Mark Vande Hei and Joe Acaba; Russian cosmonauts Sergey Ryazansky and Alexander Misurkin; and European Space Agency astronaut Paolo Nespoli, the six-person crew performed experiments that studied cosmic ray particles, the manufacturing of fiber optic filaments in microgravity as well as targeted therapies to improve muscle atrophy, among others. Additionally, three spacewalks were performed and several cargo ships resupplied the multinational outpost.

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Expedition 52

Expedition 52

Expedition 52 began June 2, 2017, and continued until Sept. 2, 2017. Russian cosmonauts Fyodor Yurchikhin and Sergey Ryazansky; NASA astronauts Jack Fischer Peggy Whitson and Randy Bresnik; and European Space Agency astronaut Paolo Nespoli spent the three-month increment performing studies over more efficient solar arrays, the physics of neutron stars and new drugs that could potentially fight osteoporosis. One spacewalk was performed and three cargo ships supplied the outpost during that time period.

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Expedition 51

Expedition 51

Expedition 51 began April 10, 2017, and continued until June 2, 2017. 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.

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Expedition 50

Expedition 50

Expedition 50 began Oct. 30, 2016, and continued until April 10, 2017. NASA astronauts Shane Kimbrough and Peggy Whitson; Russian cosmonauts Sergey Ryzhikov, Andrei Borisenko and Oleg Novitskiy; and European Space Agency astronaut Thomas Pesquet worked on about 200 experiments including a study on how lighting can change the health and well-being of station crew members, experiments on the effect of microgravity on the genetic properties of space-grown plants and how zero-g can impact tissue regeneration in humans. Four spacewalks were performed and many visiting vehicles came and went over 5.5 months.

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