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Retrieved on: 2017-12-25 20:00:00
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<div>Let's start with <b>SpaceX</b>, whose Falcon 9 rockets flew 18 missions in 2017 — more than twice the company's previous record for a calendar year. Fourteen of those liftoffs featured landings by a Falcon 9 first stage; five of the launches involved pre-flown boosters, and two of them lofted used Dragon cargo ...</div>
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