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What are some commonly known facts that are too bizarre for you to believe to be true? (lemm.ee)
submitted 2 years ago by to c/asklemmy@lemmy.ml
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For me it is the fact that our blood contains iron. I earlier used to believe the word stood for some 'organic element' since I couldn't accept we had metal flowing through our supposed carbon-based bodies, till I realized that is where the taste and smell of blood comes from.

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[โ€“] 2 points 2 years ago* (1 child)

Not too sure where you got that number from. From what I can find, the radius of the observable universe is estimated to be about 46.5 billion light-years.

Edit: I see now that you are talking Galaxy. That's different.

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