SEBASTIAN — Sky watchers along Florida’s Treasure Coast are gearing up for a double dose of rocket power Monday as a SpaceX Falcon Heavy and a United Launch Alliance Atlas V are set to blast off hours apart from the nearby Space Coast.
The Falcon Heavy is scheduled to lift off no earlier than 10:21 a.m. from Launch Complex 39A at NASA’s Kennedy Space Center. It will carry the ViaSat-3 F3 satellite toward geosynchronous orbit to boost high-speed internet service. It is the most powerful rocket in SpaceX’s fleet.
About 10 hours later, at 8:52 p.m., the Atlas V will roar skyward from Cape Canaveral Space Force Station’s Launch Complex 41. It will haul 29 Amazon Leo satellites — part of the company’s push to deliver broadband from low-Earth orbit…