Earth’s Orbital Shifts May Have Triggered Ancient Global Warming
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Then there is the Saturn theory (which isn’t as cray as it sounds) that long ago the Earth and Mars, then later Venus were moons of Saturn, but some thing very big (like a valence change on the atomic scale - {part of the Electric Universe theory}) happened expelling the gas giants further out of the solar system and stripping the moons Earth, Venus and Mars, which moved into their present orbits (see I. Velikovsky).
Its during this period, there were Ice Ages before the earth settled into its present orbit. That theory does account for why the Moon and Mars both have one heavily cratered side and one relatively smooth side, as well as the formation of the asteroid belt.
Please do not shoot the messenger - I’m just putting this out there. There is another interesting bit - when looking at other star systems, all the planets so far discovered are relatively close to their sun, not spread out like ours.
Also the present solar theory is firmly grounded in Gradualism - no sudden changes anywhere in any aspect.
“Also the present solar theory is firmly grounded in Gradualism - no sudden changes anywhere in any aspect.”
I thought Immanuel Velikovsky changed all that.
“Velikovsky argued that electromagnetic effects play an important role in celestial mechanics. “
The fact that all he exoplanets discovered so far are close to their stars is more to do with our methods of discovering them than their actual distribution in space.