NASA Commentator George Diller begins live countdown coverage.
› View This VideoThe Endeavour astronauts wave to the crowd as they walk to NASA's Astrovan.
› View This VideoSTS-123 mission astronauts get their final flight suit fit check in the White Room and are boarding the orbiter.
› View This VideoNASA Launch Director Mike Leinbach wishes the crew farewell and Godspeed.
› View This VideoEndeavour blazes a trail in the early morning sky as it carries its crew and payload to the International Space Station.
› View This VideoEndeavour soars upward as the external tank falls away.
› View This Video