SpaceX Falcon Heavy
We'll see another Falcon Heavy launch in the middle of 2019. Pictured: The SpaceX Falcon Heavy rocket lifts off from launch pad 39A at Kennedy Space Center on February 6, 2018 in Cape Canaveral, Florida. The rocket is the most powerful rocket in the world and is carrying a Tesla Roadster into orbit. Getty Images/Joe Raedie

SpaceX’s Falcon Heavy, the most powerful launch vehicle in the world today, will make her first commercial space flight Wednesday (between 6:30 and 8:30 pm ET) on a mission that will place the Arabsat 6A communications satellite into a geostationary orbit over the Middle East.

This historic first launch of the most powerful rocket since the Saturn V of the 1960s will lift-off from the Kennedy Space Center in Florida. The SpaceX Falcon Heavy launch event will be live streamed online via SpaceX’s YouTube channel.

The rocket is expected to be used primarily for U.S. military missions such as launching spy satellites. Its second mission set for June 2019 will do just that. A Falcon Heavy will launch the STP-2 mission for the U.S. Air Force. This mission, however, will also launch 25 small satellites for civilian institutions. This mission will cost the Air Force $130 million.

Wednesday’s launch will be the second for Falcon Heavy following its successful maiden launch on Feb. 6, 2018, when its payload was the personal Tesla Roadster of Elon Musk. The Roadster and its dummy space suited pilot named “Starman” are now headed for the asteroid belt.

Standing 250 feet tall, Falcon Heavy flies with three rocket boosters. The two strapped to the main booster are designed to break apart and land back on Earth. These boosters will later be refurbished and re-used, which SpaceX says drastically reduces the cost of spaceflight.

During Falcon Heavy’s maiden flight in 2018, its two side boosters made synchronized landings side-by-side ground in Florida. The main booster, however, missed landing on one of SpaceX’s seaborne landing platforms and instead splashed into the ocean.

SpaceX said it will attempt to land all three Wednesday.