Our universe spans for billions of years and a lot (trust me when I say a lot, it’s not enough to describe it) has happen. We know just a glimpse of it as we sit on the edge of this very long time period, which is beyond our imagination of time. So what’s fun in it? Well, the earth itself hides so many information about its past beneath it. It keeps away from us many interesting things about our origin and ancestors, and we may not be ready for that truth.