The countdown has just resumed out of the 3 hour hold, and the astronauts are suiting up and will be heading out to the orbiter shortly.
Endeavour sits ready for its 2nd launch attempt
Keep it tuned to Spacers for updates.
[update: 12:27am EST] Crew departs in the Astrovan for the launch pad.
[update: 12:41am EST] The crew has arrived at the pad and is inspecting the orbiter from underneath.
The crew inspects the Shuttle
[update: 1:20am EST] Crew is entering the orbiter and the close-out crew is strapping them in.
Waiting in the middeck
[update: 1:58am EST] Crew all aboard, comm checks
[update: 2:50am EST] Close-out crew is leaving the launch pad.
[update: 2:51am EST] 20 minute hold underway.
[update: 3:11am EST] 20 minute hold complete, countdown resumed. No issues in work. Weather a slight concern.
[update: 3:22am EST] Final 9 minute hold underway.
Endeavour looking good for launch
[update: 4:07am EST] 9 minute hold complete, all systems are go and Endeavour is on final countdown.
[update: 4:11am EST] Engine gimbal checks underway.
[update: 4:12am EST] Beanie cap retracting
[update: 4:14am EST] Lift-off!
Lighting up the sky
[update: 4:16am EST] Booster separation.
[update: 4:23am EST] MECO. Endeavour is in orbit.
Keep tuned to Spacers for updates throughout the STS-120 mission.
Images credit: NASA TV