Who can become a cosmonaut today? And what does the job involve? Although there are strict medical and fitness requirements, along with constant studying and training, the cosmonauts' test-taking isn't the hardest part of their career. Most difficult of all is persuading their families to endure long separations and come to terms with the great risks their flights involve. Fyodor Yurchikhin is the main subject of our documentary, 'I Need More Space'.