Russian cosmonaut who is recognized for having been a member of both the 37th and 38th expeditions to the International Space Station in orbit around Earth. In 2017, he went on to take command of the Soyuz MS-05 spaceflight.
He studied biochemistry at Moscow State University.
He performed his fourth spacewalk in August of 2017.
His grandfather Mikhail Ryazanskiy was a designer during the Sputnik era.
He has travelled into space with fellow astronaut Fyodor Yurchikhin.