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Experience this vast scale by visiting the model solar system at NRAO-Green Bank. One foot in the model is equal to 3 BILLION feet in the real solar system! At this scale, the Earth is a small dot, 1/6th of an inch across. The Sun is a ball, 18 inches in diameter. And, at this scale, the Earth's orbit around the sun is 100 meters in diameter-- the same as the GBT dish! Click on planet flags to learn more! Find out: do the planets emit radio waves? |
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