The prismatic circle in the middle is the Sun. We're the third planet revolving around it. Jupiter is the largest planet in our solar system. The Sun, Earth, Jupiter and all the planets are shown to scale to each other. In order to represent the distance of each planet to the Sun using the same scale, Mercury would be in the corner of the room and Neptune would be over a half mile away. In the Universe, our Sun is considered small, and the Earth, a cosmic grain.
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