To send Red Dragon to Mars, SpaceX is building a mega-rocket it calls the Falcon Heavy. Based on the company’s successful Falcon 9, Falcon Heavy consists of three core rocket stages, each of which is equipped with landing legs for reusability. Reusability is a core focus for SpaceX to make spaceflight more affordable. According to founder Elon Musk, reusing rockets is vital in order to make its Mars missions a reality. Read our full story here .
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