Have you ever wondered how SpaceX controls the first stage of their Falcon 9 to nail a bullseye from 70 miles in altitude and after traveling up to 5,000 mph?
SpaceX has three main systems that help steer the first stage of their impressive Falcon 9 rocket. They are grid fins, nitrogen thrusters and the merlin engines themselves. We show you how these systems interact and then try and land a first stage ourselves in Kerbal Space Program!
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