What goes up, must come down. And sometimes, the trip back to Earth is just as important as the flight itself.
That’s what SpaceX proved recently when its 10-story Grasshopper rocket flew nearly 744 meters into the air, reversed course and then made a gentle vertical landing on the same launch pad from which it started.
The successful test marks a milestone for the company, which plans to launch reusable rockets.
The flight took place October 7 and demonstrated the feasibility of a …
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