The billionaire CEO of SpaceX, Elon Musk, decided to show off his new rockets Saturday. He revealed SpaceX’s newly improved rocket, the Falcon 9R, which now has four adjustable wings. The 9R’s “X Wings” are designed to deploy after takeoff and will work with rocket thrusters for navigation, which Musk showed in a video he shared on Twitter.

Musk also revealed that SpaceX is creating rocket landing pads at sea, which will be used as refueling stations for rockets before launching back into space.

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