There's good old Mother Earth. Say, did you ever wonder about all of the things that have ever happened on Earth and how old it really is As it turns out, Mother Earth was a bit reluctant to let out her true age. It took us a long time to figure it out, but as near as we can tell, Mother Earth is four thousand, six hundred million years old (4,600 million = 4.6 billion), give or take a few ...