According to this, our galaxy has 100,000,000,000 planets. And there are at least 100,000,000,000 galaxies in the observable universe.

Which averages out to over 10,000,000,000,000,000,000,000 planets in total (all things being equal).

Which means that even if there's just a .00000000000000000000001% chance of life on any given planet (about 3 quadrillion times less likely than you being eaten by a shark this year), then there's life on at least one more out there. = )

Coincidentally, the number of planets in the observable universe is almost exactly the number of molecules in an 8 oz glass of water. So finding the right one might be just a wee bit of a problem. That, and the speed of light.

/via HN
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