How Big Is Mars?
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Mars is the 2nd smallest planet in the solar system next to Mercury. It’s also the 4th planet from the sun, and the second closest planet to Earth.
Mars is approximately half the size of Earth (which is the solar system’s 4th smallest planet) in terms of diameter, 53% to be exact. Of course, when you’re trying to answer the question “how big is mars”, there are a number of ways to arrive at an answer, depending on the measurements you want to look at.