Expedition 28 began after the Soyuz TMA-20 undocked May 23, 2011. Three new crew members arrived June 9, 2011, on the Soyuz TMA-02M.

Soyuz TMA-21

Crew: Andrey Borisenko, Ron Garan, Alexander Samokutyaev

Launch:April 4, 2011, 6:18 p.m. EDT
Docking: April 6, 2011, 7:18 p.m. EDT
Landing: Sept. 15, 2011, 11:59 p.m. EDT (Sept. 16, 9:59 a.m. Kazakhstan time)

Soyuz TMA-02M

Crew: Sergei Volkov, Mike Fossum, Satoshi Furukawa

Launch: June 7, 2011 4:12 p.m. EDT (June 8, 2:12 a.m. Baikonur time)
Docking: June 9, 2011, 5:18 p.m. EDT
Landing: Nov. 21, 2011 9:26 p.m. EST (Nov. 22, 8:26 a.m. Baikonur time)

Spacewalks:
July 12, 2011
Aug. 3, 2011