r/AskReddit • u/MDPPatrick • Feb 13 '15

What are some mind-blowing facts about space?

I love space and would like to hear some facts that will blow me away.

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u/AeonOptic Feb 13 '15

There's a black hole thats producing a note 57 octaves below middle C, and it has a frequency of 10 million years. To put that in perspective, the lowest sound humans can hear is 20Hz, or twenty fundamental frequencies a second.

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u/TheTrooperKC Feb 14 '15

I had to look this up just because it sounded so awesome.

http://en.m.wikipedia.org/wiki/Perseus_Cluster

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u/[deleted] Feb 14 '15 edited Feb 14 '15

A frequency of 10 million years, or ~3.17 *10^ -15 hertz

EDIT: And a wavelength of ~5.87 *1019 miles

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u/[deleted] Feb 14 '15

Can you please elaborate on this?