Witness an Atlas V Rocket Lift Off on a Mission to the Sun! Mission: Solar Dynamics Observatory (SDO) Launch Date: Tuesday, February 9, 2010 Launch Window: 10:30 a.m. -11:30 a.m. ET Launch schedule subject to change. Arrive Early! The Atlas V rocket will launch NASA's SDO spacecraft on an unprecedented mission to study the sun and its dynamic behavior. Onboard telescopes will scrutinize s...