Above, the Astrovan carrying the STS-121 crew passes the Launch Control Center on its way to Pad 39B. Below, astronaut Mike Bloomfield circles KSC in the Shuttle Training Aircraft as he performs weather reconnaissance: Back to STS-121 launch photos
	One of the many thunderstorms and associated anvil clouds that led to the scrub of the second launch attempt::
	A KSC Swat Team member follows the Astrovan on the way to the pad: