|Wayne Roberts © 2003-2015
Music of moons
The fact that neither Newton's nor Einstein's theory of gravitation accounts for the many astronomically observed (and statistically significant) synchronicities and resonances that exist between the orbital and rotational periods of planets and moons points to a gap in our understanding of celestial motion.
The Apollo space missions allowed humankind for the first time to see 'the other side of the moon' (since the moon always presents the same face to us here on planet Earth). But it appears we have seldom pondered why this is so. It is easy, upon a brief consideration of the situation as we understand it today, to realise that the moon must take exactly the same time to spin once on its own axis as it does to orbit once around the Earth—28 days. But this does not explain why the moon has apparently tuned in to a 1:1 resonance between its orbital and rotational periods.