Posted: Tue, Jul 26, 2005, 12:50 PM ET (1650 GMT)

The space shuttle Discovery lifted off on schedule Tuesday morning on the first shuttle mission since the Columbia accident nearly two and a half years ago. Discovery launched on mission STS-114 at 10:39 am EDT (1539 GMT), after a countdown largely free of any technical issues. A problem with a fuel sensor that scrubbed a launch attempt on July 13 did not reoccur, and weather conditions for the launch were ideal. Discovery is scheduled to arrive at the International Space Station on Thursday morning.