In the documentary "Miracle Planet," it is claimed that 4.5 billion years ago, the early Earth was only one-tenth its current size ?
I was watching the documentary *Miracle Planet* (Part I: The Violent Past), and at the 2:30 mark, the narrator states that 4.5 billion years ago, the early Earth was probably only a tenth of its size compared to today.
I looked it up, but I couldn't find anything backing up this claim. Did they make this up, or is there something I am missing? #science