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  • Things You Didn’t Know About NASA’s Mars Rovers

    Things You Didn’t Know About NASA’s Mars Rovers

    On July 4, 1997, a tiny, flat robot touched down on the surface of Mars and became the first wheeled vehicle to roam around on another planet. Since then, a fleet of Martian rovers have followed in the tracks of Sojourner and they have become bigger, better, and more autonomous over the years. Sojourner was…