"Uncertain weather threatens SpaceX Falcon Heavy launch"

SpaceX is set to launch a Falcon Heavy rocket from Kennedy Space Center's Pad 39A on Thursday, April 27, carrying ViaSat-3 Americas and Arcturus communications satellites. The launch window extends just over an hour to 8:31 p.m. EDT, with a 60% chance of favorable weather. The Falcon Heavy will fly on an east trajectory, and SpaceX will not attempt to retrieve boosters due to the weight of the satellites and trajectory. This will mark the first time Falcon Heavy flies with the deliberate goal of expending all boosters.