Expedition 42 was the 42nd expedition to the International Space Station. It began on 10 November 2014 with the undocking of Soyuz TMA-13M, returning the crew of Expedition 41 to Earth and ended with the undocking of Soyuz TMA-14M on 11 March 2015.

Soyuz TMA-14M was a 2014 flight to the International Space Station. It transported three members of the Expedition 41 crew to the International Space Station. TMA-14M is the 123rd flight of a Soyuz spacecraft, the first flight launching in 1967. The Soyuz remained docked to the space station for the Expedition 42 increment to serve as an emergency escape vehicle until undocking and landing as scheduled in March 2015.