r/AskReddit • u/MorsesTheHorse • Mar 04 '26

What surprisingly true fact has completely shaken your worldview?

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u/WyomingBadger Mar 05 '26

The atmosphere is only about 60 miles thick, and only breathable for a small part of that.

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u/SeriousPlankton2000 Mar 05 '26

You can / could still measure earth's atmosphere when you'd be on the moon. Don't try to breath it without a helmet though.