Half of the atoms in your body were made outside the Milky Way.
Very interesting! Source? Thinking out loud: By mass, we're mostly carbon and oxygen, which were most likely made nearby by a predecessor star, I believe. By number of atoms, we're mostly hydrogen, which ought to date to very early in the Universe, before there was a Milky Way
-
-
Hmm. So I guess that makes sense: the hydrogen atoms are ~half (by number) in our body, and they were made before there was a Milky Way. That's a really cool fact, thanks for sharing!
-
The explanation is way cooler: Intergalactic winds!https://www.theguardian.com/science/2017/jul/27/we-are-all-made-of-stars-half-our-bodies-atoms-formed-beyond-the-milky-way …
End of conversation
New conversation -
-
-
I don’t know about the source but this was deeply educational and fun to ponderpic.twitter.com/dbwwiSRGR1
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
@michael_nielsen what would be the percentage if we talk about molecules instead of atoms?Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.