He attended North-Onega secondary school from 1993 to 2003 before going on to study engineering at Baltic State Technical University.

[2] Vagner was assigned to back up to Russian Flight Engineer Andrei Babkin onboard Soyuz MS-16, scheduled to launch in April 2020.

He, alongside Ivanishin and NASA astronaut Christopher Cassidy, launched successfully arriving in orbit and docking with the ISS six hours later on 9 April 2020, officially joining the Expedition 62 crew alongside Roscosmos cosmonaut Oleg Skripochka and NASA astronauts Jessica Meir and Andrew Morgan.

[3] During Expedition 63, Vagner and his two crewmates were scheduled to be on board the ISS for the arrival of a number of visiting crewed vehicles.

[5] The mission was crewed by NASA astronauts Doug Hurley and Robert Behnken, who remained on board the ISS for two months.