Did you know that there was an Earth age before this one and that the Earth is really Millions+ years old? Scientist's estimate this Earth to be somewhere around 4.6 Billion years old. Now of course, no one knows for sure how old this Earth is, except for GOD Himself but we do know that it is at least millions of years old according to the fossils that have been found and documented. Some Christians may tell you that this Earth is only about 6,000 years old according to the Bible but that is simply because they have never heard about the 1st Earth age or don't understand what it is. After all, how can a CHRISTian truly understand our Father's Word if they do not understand the beginning. Let's begin in Genesis 1. Starting from verse 1 and it reads: 1 In the beginning God created the heaven and the earth.