There are approximately 300 sextillion (that's a '3' followed by 23 zeroes) stars in the universe. That's a lot of stars. There are estimated to be around 100 billion Earth-like planets in the Milky Way galaxy alone. And there may be as many as 500 billion galaxies!
If only one in a billion Earth-like planets had the correct conditions for life, that would leave 50 trillion planets. If only one of these planets in a million actually formed life, that would be 50 million planets.
50 million.
And that's a really, really, really conservative estimate.
I think the odds are that alien life exists. It's mathematically improbable that we are alone in the universe.
Great post! Very thought provoking
ReplyDeleteBut what if I dont believe the Universe exists to these numbers? What if I believe it is all based on theory and concept. Not facts?
ReplyDeleteI promise not to lose any sheep over it. :)
Delete"Sleep". Although "sheep" is funnier...
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