Expedition 27's ride to the International Space Station, The TMA-21 Soyuz Spacecraft was mated with it's boosters in on April 1st in advance of it's rollout to the launchpad for the scheduled April 5th launch.<br /><br />The launch will bring Soyuz Commander Alexander Samokutyaev, NASA Flight Engineer Ron Garan and Russian Flight Engineer Andrey Borisenko to the complex.
