https://www.youtube.com/watch?v=Ya0BS9fznd4

Published on Nov 1, 2016.

Did you hear that the Universe has 10x the number of galaxies? How did astronomers discover this, and what does it mean for the number of stars?

But a new paper published in the Astrophysics Journal revised the estimate for the number of galaxies, by a factor of 10, from 200 billion to 2 trillion. 200 billion, I could wrap my head around, I say billion all the time. But 2 trillion? That’s just an incomprehensible number.

 

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