The Universe in numbers

The total number of stars in the universe is greater than all the grains of sand on all the beaches on earth.

10,000 grains of sand in a handful of sand, which is roughly the same as:
10,000 stars visible in the sky on a clear night.

100,000,000,000 (100 billion) stars in an average galaxy.
100,000,000,000 (100 billion) galaxies in the universe.

These numbers are from Carl Sagan’s Cosmos TV Series. Here’s a clip from it:
I’ve ordered the complete DVD set from Amazon:

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