How many other Planets are in the goldilocks zone? There are so many planets in our cosmos, we haven't even seen a tiny fraction. Do you think that more of these Earth cousins exist? Could they be older than Earth? Could they harbor a civilization light years ahead of ours? It is very possible. Not only could this planet harbor humans just like us, but they could be eerily just like us asking the same questions about a Kepler like planet far-far away. Or whatever they would call their on planet...Very cool.
