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6th Class General Knowledge Related to Competitive Exam Question Bank Universe

  • question_answer
    A space probe is a robotic spacecraft that leaves Earth's orbit and explores space. Which among the following was the first space probe to maintain orbit around another planet?

    A)  Mariner 10

    B)  Mars 3

    C)  Mariner 9

    D)  Sojourner

    Correct Answer: C

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