Launching Elon Musk's car toward Mars was a backup plan — here's what SpaceX actually wanted to do with Falcon Heavy's first flight

SpaceX launched its powerful Falcon Heavy rocket for the first time on Tuesday.
The test payload was Musk’s own Tesla Roadster, fitted with cameras and a dummy wearing a SpaceX space suit.
But SpaceX reportedly offered NASA and the Air Force a chance to put

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