History Ganang Adi View my complete profile Saturday, April 16, 2011 STS-135 ATLANTIS STS-135 Atlantis Space Shuttle Atlantis Mission statistics Mission name STS-135 Space shuttle Atlantis Launch pad 39A Launch date NET  28 June 2011 15:48 EDT [1] [2] Landing NET 10 July 2011 11:18 EDT Mission duration 12 days [3]