STS-31 Launch of Discovery
STS-31 Discovery, Orbiter Vehicle (OV) 103, nearly clear of the fixed service structure (FSS) tower rises above Kennedy Space Center (KSC) Launch Complex (LC) Pad 39B after liftoff at 12:33:51.0492 am (UT). An exhaust cloud produced by the solid rocket boosters (SRBs) covers the launch pad below. The top of the retracted rotating service structure (RSS) appears at the left. OV-103 atop the external tank (ET) and flanked by the SRBs heads into Earth orbit with the Hubble Space Telescope (HST) aboard.