Based on his interpretation of ancient sources, Immanuel Velikovsky argued famously that Venus had emerged from Jupiter as a comet; interacted with the Earth and Mars in the second and first millennia BC, causing the Bronze Age catastrophes; and then finally settled into a nearly circular orbit of the Sun.
Three lines of reasoning support a Revised Venus Theory.
First, instead of the various unpersuasive suggestions that Velikovsky and others have made for how a cometary Venus could have emerged from Jupiter, we should consider the possible consequences of the immense gravitational field of Jupiter, which pulls toward it a stream of asteroids and comets, as with Shoemaker-Levy 9 in 1994.
In his Worlds in Collision (New York: Macmillan, 1950), Immanuel Velikovsky argued that Venus emerged as a red-hot comet from Jupiter and passed Earth every 52 years, causing the Bronze Age catastrophes, before settling into its current orbit. His claim set off a controversy in which his theory was rejected and stigmatized. But over the years, new findings have changed the picture. Here are eight new reasons to accept a Revised Venus Theory, based on the evidence and reinterpretation in The Knowable Past (2nd edition, Washington, D.C.: Scientia Press, 2019).