Celestial Harmonic Motion - Human eyes only saw this last week.
https://www.youtube.com/watch?v=zqZEgoJasPQ
Waht you're seeing here is the moons of Jupiter time lapse, actually orbiting. Notice how far Callisto gets, it gets FAR away. And how close Io gets. Jupiter must have some serious gravity to keep all these things locked.
Human beings have never seen this. You can say you saw it from the Earth, with the moon. But this is lie a microcosm of a solar system!
Yay JUNO!! I'm STOKED at what they might find!