How Do We Know the Earth Orbits the Sun? | Science Blogs | WIRED
"Sure, the textbooks all say that the solar system is heliocentric. But how do we know that? More importantly, how can YOU tell which is the better model?"
How Do We Know the Earth Orbits the Sun? | Science Blogs | WIRED
"Sure, the textbooks all say that the solar system is heliocentric. But how do we know that? More importantly, how can YOU tell which is the better model?"
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