The shuttle safely blasted off from the base at
Conditions at launch were good. The sky was clear, with only a gentle breeze.
Seven astronauts are aboard the shuttle on a mission to add an $11 million truss segment to the International Space Station.
It is the fourth space shuttle flight since
It is the first night launch since Endeavour lifted off on November 23, 2002.
is the first night launch since Endeavour lifted off on November 23, 2002.
Nasa plans to finish building the space station by 2010, when the shuttle fleet, now down to three craft, is to be retired.
The three shuttle launches following the loss of
A piece of insulating foam damaged Columbia's heat shield shortly after launch, leading to the shuttle disintegrating upon re-entry into the atmosphere.
The September 2006 shuttle launch marked the resumption of the space station's construction, after the previous two missions focused on improving safety.
A pair of power-producing solar arrays were added to the ISS in September and will be activated during the Discovery mission.