On April 12, 1981, the first U.S. space shuttle mission (STS-1) launched from the Kennedy Space Center. On April 12, 2011, NASA will celebrate 30 years of space shuttle flights.
NASA just announced that the STS-134 space shuttle mission scheduled for April 19, will be delayed to April 29, 2011, to resolve a scheduling conflict with a Russian Progress re-supply vehicle.
NASA announced on July 1, 2010, that it has confirmed the launch dates of STS-133 and STS-134. The space shuttle program is officially active through the end of February 2011.