I've been reading about Immanuel Velikovsky. In the late 1940s he proposed an entirely new theory of cosmology, of radical instability. That the solar system is not stable.

He said that on the edge of remembered human history Venus was ejected from Jupiter as a firey comet and swung around the solar system causing mayhem. Venus in a random non-planar orbit of the Sun would eventually have near misses with the other planets, transfering energy and changing orbits.

This explains why the ancients were so obsessed with solstices and the positions of "warring" Mars and Venus. Because when they started to drift off this meant all hell was about to break loose.

We've been conditioned to think of Venus's chariot of fire marching across the sky as being entertaining stories for an illiterate age instead of a literal ball of fire charging across the sky raining burning petroleum, tearing up continents, raising volcanos and boiling seas.

He says there is lots of evidence for this in misaligned ancient momuments, such as multiple redesigns of Stone Henge.

He says these traumatic past events were obliterated by amnesia and humans didn't want to remember.