Talk:Galaxy/@comment-94.12.31.80-20170723210914

There's a mistake in the calculation here:

"Michael Brooks said on the morning of March 17, 2016 approximately 30 million 851 thousand 973 systems were explored by people. That's 0.0077% of the Milky Way galaxy."

That's taking the number of stars (400 billion) not systems (100 billion). The true figure is 0.031% of the milky way's systems.

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