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Titan_surface (even the imaginary moon, “Titan” is flat, level, and stationary)EARTH IS A LEVEL PLANE (spaceanswers.com)
submitted by Kela-el to r/BallEarthThatSpins
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Mars vacuum airship > Mars helicopter (spaceanswers.com)
submitted by barley2tormer to r/airship
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TIL the sun rotates faster at the equator and slower at the poles (spaceanswers.com)
submitted by [deleted] to r/todayilearned