

There is no need for an edge to exist, as the Earth might be infinite. The reason why those regions are not studied is because the temperature there most likely is near the absolute zero and it's completely dark with no stars, planets or anything which might give us directions. In fact, the Earth might be infinite and beyond the circle on which we live there might be a lot more. We happen to live in that region which is covered by Sun's light, however, this doesn't necessarily mean that the Earth is only that big. It is possible that the Sun shines only over a small circle of the Earth, but not the whole Earth. ’So the world really is round,’ I said softly to myself, as if the words came from somewhere deep in my soul. If it is based on the stars and the Sun (astronomical observations) then there is a risk it is wrong. quite unique and it had 6 flat surface First human spacewalker, Cosmonaut Alexei Leonov: Lifting my head I could see the curvature of the Earths horizon. We're told its surface is around 510,072,000 km²(196,939,900 sq miles), however, how exactly did we come up with that number? I don't think there is indisputable evidence that the Earth is as big as currently thought.
