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Q: What is approximate duration (in years) of Mars retrograde?
  • A. 3
  • B. 5
  • C. 4
  • D. 2
Correct Answer: Option D - Mars Retrograde happens every two years. When a planet is retrograde, it appears to be moving backwards in the sky of the earth. This means that during this time the planet appears to slow down and then reverse course, moving backwards through the sky. It is kind of illusion as the planet is actually moving in its orbit.
D. Mars Retrograde happens every two years. When a planet is retrograde, it appears to be moving backwards in the sky of the earth. This means that during this time the planet appears to slow down and then reverse course, moving backwards through the sky. It is kind of illusion as the planet is actually moving in its orbit.

Explanations:

Mars Retrograde happens every two years. When a planet is retrograde, it appears to be moving backwards in the sky of the earth. This means that during this time the planet appears to slow down and then reverse course, moving backwards through the sky. It is kind of illusion as the planet is actually moving in its orbit.