Endeavour launched into space for its 25th and final time. STS-134, the penultimate mission of NASA's Space Shuttle program, delivered the Alpha Magnetic Spectrometer-2 and critical supplies to the International Space Station.

Endeavour launched into space for its 25th and final time. STS-134, the penultimate mission of NASA's Space Shuttle program, delivered the Alpha Magnetic Spectrometer-2 and critical supplies to the International Space Station.