Which of the following has not yet been visited by NASA or ESA ?

  1. Venus
  2. Pluto
  3. Mercury
  4. Titan
Anurag Mishra Professor Asked on 10th January 2016 in Science.
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  • 1 Answer(s)

    Answer: (3) Mercury 

    Anurag Mishra Professor Answered on 11th January 2016.
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