The Russian Space Agency, Roscosmos, gave final approval to the new crew member to the International Space Station (ISS) on Monday.
According to the Russian Cosmonauts Training Center, the new crew members are Russian cosmonaut Sergei Volkov, Japanese astronaut Satoshi Furukawa and American astronaut Michael Fossuma.
The three members are scheduled to fly to the ISS by a Soyuz TMA-02M spacecraft on June 8, the center said.
On last Friday, the three members and their backups have passed preflight tests.
The new crew will spend 161 days in the ISS and conduct three space walks. During their duty trip, the crew also plans to take pictures of the last U.S. space shuttle Endeavor.