加加林宇航员培训中心
On August 17, 1989, Akiyama was selected for a commercial Soviet-Japanese flight. The flight was sponsored by the TBS Corporation to celebrate its fortieth anniversary. The amount that the corporation paid for the flight of its employee differs significantly from one source to another (28 million US dollars, 25 million, 5 billion yen or 37 million US dollars). Akiyama started training at the Yuri Gagarin Cosmonaut Training Center in October 1989.