SpaceX is getting ready for its first ever test flight of the Falcon Heavy, its heavy-duty rocket aimed at propelling large cargo loads into low Earth orbit. The rocket uses three Falcon 9 boosters combined for maximum load capacity when leaving Earth's atmosphere, and it's looking to do its first test launch within the next few weeks from Cape Canaveral in Florida. The rocket made its way to the Cape Canaveral launch facility late in 2017, but now it's actually vertical on the launchpad, undergoing its long preflight test check list before the actual attempt is made. SpaceX celebrated...