I just did some checking... I thought it was a billion or so... nope. 100 Billion. WOW
one hundred billion galaxies
According to the best estimates of astronomers there are at least one hundred billion galaxies in the observable universe. They've counted the galaxies in a particular region, and multiplied this up to estimate the number for the whole universe. How do we know how many galaxies are in our universe ... Apr 1, 2014 - All in all, Hubble reveals an estimated 100 billion galaxies in the universe or so, but this number is likely to increase to about 200 billion as telescope technology in space improves, Livio said.
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www.physics.org/facts/sand-galaxies.asp Indeed Mind Boggling numbers. That means trillions and trillions of planets. What a cool cosmos we live in.