Among all the planets of the Solar System, our Earth is unique since it’s the only one that has developed life. But what if we got a competitor? What if a second Earth appeared out of nowhere? Then there would be two different scenarios. The first is the destruction of both planets. The second has an unexpected but pretty logical ending. But let’s start with the catastrophic scenario. The second Earth with the same conditions could exist only if it received absolutely the same amount of sunlight as our planet. The orbit that our Earth follows is perfect for getting the necessary amount of solar heat. If we were a little further away, the entire surface of our planet would resemble Antarctica. And if Earth was a little closer to the Sun, we’d all live in a huge desert inhabited by very few living beings. So, for the second Earth to be identical to ours, it’d need to follow the orbit of our planet.
Web Source: BrightSide