The shuttle left its Florida launch pad right on schedule at 1438 EDT (1838 GMT) and roared skywards to the cheers of spectators.Source: BBC.
The vehicle's mission will take it to the International Space Station (ISS).
The shuttle flight is the first of 2006 and only the second since the catastrophic loss of the Columbia orbiter three years ago.
Tuesday's successful lift-off followed a frustrating weekend when stormy weather over Kennedy had scrubbed two attempted getaways.
Space shuttle Discovery launched today
Posted on Tuesday, Jul 04 2006 @ 22:38 CEST by Thomas De Maesschalck
NASA launched the space shuttle Discovery a few hours ago from the Kennedy Space Center.