STS-135 to Demo-2: Ending The Gap

On May 27, crewed orbital spaceflight will return to the United States. NASA astronauts Doug Hurley and Robert Behnken will crew the SpaceX Demo-2 mission to the International Space Station, ending the gap in domestic crew launch capability since the final Space Shuttle mission in 2011. Stay tuned to NASASpaceflight for extensive coverage of this historic mission. Music: Parzival by William Rosati via YouTube Audio Library An overview of the gap: