Twice delayed SpaceX Falcon Heavy launch set for Wednesday

The Arabsat-6A satellite undergoing final testing at Lockheed Martin's Sunnyvale California site

Regardless, both Falcon Heavy side boosters will attempt to repeat the iconic side-by-side landings that is now a signature of the rocket's 2018 launch debut, while the center core - traveling much faster at the point of stage separation - will travel almost 1000 km (620 mi) downrange for a landing aboard drone ship Of Course I Still Love You (OCISLY). After saying for years that the Europa Clipper spacecraft could only launch on the Space Launch System (SLS) rocket, for example, NASA began talking about the possibility of launching it on a Falcon Heavy due to ongoing concerns about delays with the larger SLS booster.

Falcon Heavy is a modified version of SpaceX's standard Falcon 9 rocket, essentially made up of three Falcon 9's strapped together, albeit with a reinforced center core.

The launch is now scheduled for 6:35 p.m. EST, and it will be streamed live online.

SpaceX, based in Hawthorne, California, set a company record previous year with 21 launches for customers.

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A Saudi Arabian communications satellite is scheduled to blast off this evening in what will be the Falcon Heavy's first operational mission.

The Falcon Heavy is the world's tallest and most powerful rocket in use.

In fact, the two side boosters that will fly tomorrow are already earmarked for Falcon Heavy's next flight, now slated for June.

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

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The Falcon Heavy launch has already been postponed once, as it was originally supposed to take off on Sunday. As of this posting, the company's latest update notes that tomorrow's weather forecast provides an 80 percent chance of favorable conditions for launch.

SpaceX's Falcon Heavy will launch on its first commercial flight tomorrow.

The rocket's launch was watched by millions around the globe, thanks in no small part to SpaceX founder Elon Musk deciding to use a cherry red sports vehicle as the payload cargo. But the middle booster missed a seaborne platform it was created to land on, and instead splashed into the ocean. During it, the rocket carried Elon Musk's red Tesla Roadster into space.

Falcon Heavy is not expected to fly almost as often as its smaller counterpart, which has completed more than 20 missions since last February. With three first-stage boosters akin to SpaceX's Falcon 9 rockets, the Falcon Heavy boosters, too, are created to fly back to Earth and be reusable.

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