From The Awesome Life Force by Joesph H. Cater. Page 194
Radar pictures recently taken of Venus show two almost perfectly round
depressions that are antipodes of each other. One has a diameter that is 40
percent as great as that of the planet itself. The other has a diameter
nearly 30 percent as great. Incredibly, these were explained away as being
impact craters. It is difficult to believe that even the scientific
community has any members of sufficient mental vacuity to endorse such an
explanation. Yet the author knows an honored member intimately who insists
this is what they are. As anyone who has even a modicum of intelligence
should realise, an impact crater will have a depth that is a reasonable
percentage of its diameter, especially if the missle does not bounce off and
sinks below the surface. An impact capable of producing a crater with such a
diameter would completely shatter even a solid planet The impossible
coincidence that a planet would have two such craters, nearly the exact
antipode of each other, has been cheerfully ignored.
Dean , I agree with you that Venus is indeed an unusual planet .
It is probably the weirdest planet known to man , firstly because many of it's characteristics cannot be properly explained by the laws of "established planetary science" .
One of the famous writers of the 20th century , Immanuel Velikovsky had done lot of research about planet Venus . One of the astonishing claims made by Velikovsky was that planet Venus is much younger than all other planets of our Solar system , possibly only thousands of years old , whereas other planets are few billion years old .
Secondly , Venus has striking resemblances to a comet than a conventional planet . Velikovsky was bold enough to propose that all planets form from comets that are basically electrical in nature . The electric universe or plasma universe theory were built on the foundation of pioneering ideas given by Velikovsky .
Therefore , Velikovsky had in effect proposed an alternative theory of planet formation (basis of his research about Venus) , which stated :
All planets are formed from the "seed" of comets that are actually electrical in nature
New planets can form in our solar system at any time , even now , if a particular comet is able to accumulate enough matter around itself via electrical attraction .3. Venus was once a comet which became a planet
Velikovsky had based his theories on the study of mythological texts from different cultures across the globe and how they had described the ancient skies . Surprisingly , in later part of 20th century , most of Velikovsky's conjectures about Venus started proving to be correct , to the utter embarassment of conventional astronomers .
Throughout his career though , he was hounded and lampooned by the mainstream science establishment Even Carl Sagan had once publicly challenged him for a debate on planetary science . This constant ridicule from the science establishment , finally took a toll on Velikovsky's health and he died of depression in 1979 .
Here are some links which explain Immanuel Velikovsky's thinking about planetary science and some of his supporters in this field :