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The Reusable Rocket Revolution
Before SpaceX, rockets were used once and thrown away — like building an airplane for one flight and crashing it into the ocean. Elon Musk's SpaceX changed everything by building rockets that LAND BACK ON EARTH after launch. The Falcon 9 booster flies to space, separates, flips around, reignites its engines, and lands vertically on a pad or a drone ship in the ocean. This saves hundreds of millions of dollars!