SpaceX Rocket to Launch Secret Zuma Mission Wednesday Night

SpaceX warns of sonic boom after next launch in Florida

SpaceX warns of sonic boom after next launch in Florida

A two-hour launch window for the company, which plans to launch a secretive spacecraft known only as Zuma, will open at 8 p.m. Wednesday.

Wednesday's launch is scheduled to occur from KSC's historic Launch Pad 39A - the former site of Apollo moon mission and space shuttle liftoffs - during a 2-hour window that opens at 8 p.m. EST (0100 GMT on November 16).

SpaceX sent an advisory Wednesday warning that this launch could trigger a sonic boom, which residents of Brevard, Orange, Osceola Seminole and Volusia counties may experience.

SpaceX will loft Zuma for the US government, in a launch procured by aerospace and defense company Northrop Grumman. Hearing the sonic boom will depend on weather conditions across the region.

Zuma satellite mission patch. Credit SpaceX  Northrop Grumman
Zuma satellite mission patch. Credit SpaceX Northrop Grumman

The new nine-engine rocket will launch from pad 39A and will take the secret payload to a low orbit.

The launch will be streamed live by the private space delivery company, and the Falcon 9 rocket's first stage is due to land back down at Cape Canaveral Air Force Station.

The engines were ignited for testing purposes early Saturday evening at NASA's Kennedy Space Center.

Cumulus clouds could be the main restrictions for the launch, which is given a 70 percent chance of being a "go".

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