Astronomy·Matters

Pythagoras, 582~507 BC (the father of numbers) believed in "Harmony of the Spheres".
He believed that since planets and the stars all moved in the universe according to mathematical equations
that these mathematical equations could be translated into "musical notes" and thus produce a symphony.
If you listen closely... the Spheres really have their music.
Mercury - Venus - Earth & Moon - Mars (relative size) | Jupiter - Saturn - Uranus - Neptune (relative size)

Mercury - Venus - Earth & Moon - Mars (relative size) | Jupiter - Saturn - Uranus - Neptune (relative size)