Earth’s original shape revealed by scientists
Story by @sarahknapton
Basically the article stated that all planets start off looking like Smarties.
I considered that this might be that as Space debris coalesced under the influence of Gravity, their angular Momenta would add vectorially, with the more massive body taking dominance, so all would take the same axis of rotation. The edge of the disc so-forming would be nearer any approaching masses, so they would ten to be more strongly attracted to the edge of the disc, increasing the disc shape. As the mass increased, impact energies would make the planet more plastic, allowing Gravity to make the disc more spherical.
My next query was would all planetary bodies then, being isolated systems, have different axes of rotation. Obviously the planets in our Solar System all have/had the same axes but pictures of galaxies show they do not. Why?
I posited that, like the Earth they all carry a Static charge and as they rotate they’ll have an associated magnetic field, which I then likened to the atoms in a piece of Iron.
In unmagnetised Iron, the atoms in the crystals are aligned but the crystals, or domains, move to a low energy configuration, so there is no outward sign of magnetisation but internally the domains are locked in position.
I really don’t get dark matter, or dark Energy, but I wonder if this Galactic domain idea might play a role.
Wiganshale's Blog 