100 Billion
Out of context: Reply #21
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- twooh0
We do not live in the oldest galaxy in the universe. We are discovering galaxies that were born only 420-million years after the big bang itself. For comparison, our Milky Way is closer to 510-million. So it's pretty doubtful that if there were other living beings out there, that they would be younger than homosapiens, or anything like us.
As I had said earlier, it's statistically nearly impossible to come across another species like us. So far, the Kepler telescope has managed to discover several planets within the proper habitable zones to their stars, but none with the exact ratio as ours. It's a very thin margin to meet. For example, Mars fits within a habitable zone, but it is obviously inhospitable since it lacks an atmosphere.