Mikhail Kornienko is a Russian cosmonaut who has undertaken multiple missions to the International Space Station. He first served as a flight engineer during Expedition 23 and 24 in 2010. He was later selected for a year-long mission on the ISS that spanned from March 2015 to March 2016, covering Expedition 43 through 46. For this mission, he collaborated with American astronaut Scott Kelly. The mission, launched aboard Soyuz TMA-16M, aimed to study the physiological and psychological effects on humans during extended periods of spaceflight. The collected data are intended to aid preparations for future missions requiring extended human presence in space.