Mission type | Long-duration expedition |
---|---|
Mission duration | 340d 8h 43m |
Orbits completed | 5,356 [1] |
Expedition | |
Space station | International Space Station |
Began | March 27, 2015, 19:42 | UTC
Ended | March 2, 2016, 04:25 | UTC
Arrived aboard | Soyuz TMA-16M |
Departed aboard | Soyuz TMA-18M |
Crew | |
Crew size | 2 |
Members | |
EVAs | 4 |
EVA duration | 23h54m |
![]() ![]() Scott Kelly and Mikhail Kornienko |
The ISS year-long mission , also called the One-Year Mission, was an 11-month-long scientific research project aboard the International Space Station, which studied the health effects of long-term spaceflight.[2]
The NASA Twins Study was conducted. Astronaut Scott Kelly is selected for the mission with his identical twin, Mark Kelly, on earth as control group. Scott spent 340 days in space for the experiment. The result demonstrated several long-lasting changes, including those related to alterations in DNA and cognition.[3][4]