NASA's Ares X-1 rocket set to launch from 39-B pad

The 39-B launch pad of the Florida Kennedy Space Center will reveal for the first time in decades the presence of a rocket intead of a space shuttle. Ares X-1, a thin 100 meter rocket, is scheduled to launch from Kennedy Center on Tuesday between 8 a.m. and noon and its spatial behavior will be essential for determining NASA's next generation of space vehicles. The Constellation Program, with Ares X-1 as part of it, is assigned to build up new vehicles to replace the space shuttle whose last flight is scheduled for September 2010.
WATCH LIVE STREAM NASA ARES X-1 LAUNCH. (CNN live select "NASA launches Ares I-X rocket")
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Ares I-X launch was already postponed a few times due to weather conditions which were going "red"
After many postpones, NASA cancelled the Ares rocket launch due to coudy, windy, bad weather.
Update: After a delay of one day, Ares 1-X was finally launched on 28 October 2009 at 11:30 (Florida time). The Ares I-X flight time was about 2-3 minutes and the rocket managed to reach a 4 Mach speed before separation and falling down back to Earth.