Roll Discovery News Today

Sequence start. >> sequence start. >> t minus 25 seconds. discoverys on board computers have primary control of the vehicles critical functions. 20 seconds. t minus 15 seconds and the sound suppression water system has been activated. we have a go for main start. up and ready. 3, 2, 1. zero. booster ignition and liftoff of discovery. blazing a trail to scientific discovery for the space station. >> roll discovery.