Soyuz 26 on approach to ISS.
At 5:09 p.m. Mountain, on Wednesday Apr 6th, the TMA21 (Soyuz 26 "Gagarin") docked successfully to the Russian Poisk module on the International Space Station. Three hours later, after the craft had been shut down, pressures equalized and all systems readied, the hatch opened and Expedition 27 received its three new members.
They are expected to remain on board the ISS until September. Halfway through their time in space, in May, this group of three will become the new Expedition 28 crew when the first half of their team leaves the station for a landing on Earth.