First static test o' t' booster for t' Ares I rocket, set t' send man back t' t' moon and eventually t' mars. T' week before this video was taken another test was attempted, but a problem was found and t' test was scrubbed with 20 seconds left on t' clock, that's why t' crowd cheers with 19 seconds left on t' clock. Blimey! Notice how long it takes for t' sound t' reach t' crowd, that's how far away we were.