SpaceX's Falcon Heavy rocket set to launch Wednesday night

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The SpaceX design is also cheaper to operate than the Delta, with each Falcon launch costing between $90 and $150 million.

Crews positioned the Falcon Heavy vertically ahead of launch from LC-39A at Kennedy Space Center.

When the rocket flew past year, its two side boosters made synchronized landings on side-by-side ground pads in Florida.

Those landings could potentially cause the sonic booms that SpaceX said might be heard in Orange, Seminole, Brevard, Volusia and other Florida counties.

The SpaceX Falcon Heavy on the launchpad.

SpaceX will provide a webcast of the launch, landing attempts, and satellite separation from the upper stage, beginning 20 minutes before the anticipated liftoff on Wednesday.

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I ain't trying to shoot [my shot] at her. "She can call my line", he said during the broadcast. He was pronounced dead at the hospital, while the other two men are in stable condition.

For SpaceX, the addition of the large and reusable Falcon Heavy to its launch business gives the company the ability to bid on heavier payloads than it can with the smaller Falcon 9 rocket, opening up the market for big commercial satellites launches and national security missions. For the first flight, the Falcon Heavy rocket carried SpaceX CEO Elon Musk's red Tesla Roadster to Mars.

Falcon Heavy's three Falcon 9 components are clearly on display in the hangar before its Wednesday launch.

Along with the Hellas Sat-4/SaudiGeoSat-1, the Arabsat-6A satellite under the Arabsat-6G program is the most advanced commercial communications satellites ever built by space technology company Lockheed Martin. SpaceX was forced to delay the rocket's launch by one day, following stormy weather conditions over Cape Canaveral, Florida.

According to SpaceX, Falcon Heavy is "the most powerful operational rocked in the world by a factor of two", with its 27 Merlin combustion engines capable of generating more than 5 million pounds of thrust at lift-off.

"SpaceX will attempt to land Falcon Heavy's side boosters at Landing Zones 1 and 2 and Falcon Heavy's center core on the Of Course I Still Love You droneship during the Arabsat-6A mission", SpaceX tweeted out Tuesday. If the launch gets scrubbed again, SpaceX will have another chance on Thursday evening. This will deliver television, internet, and mobile phone services to the Middle East, Africa, and Europe.

The stakes were high when the Falcon Heavy lifted off for the first time in February 2018. That's the US Air Force's STP-2 payload, consisting of more than two dozen satellites. Navigator and Searcher are expected to focus on gathering data and extricating Falcon Heavy's fairing halves - hopefully intact after parasailing gently onto the ocean surface - from the Atlantic. Falcon Heavy only has five missions on its manifest so far.