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I enjoyed this quote: "Nine out of every 10 atoms in the universe are hydrogen, the first element and the major constituent of stars. The other 10 percent of all atoms are helium. That's already 100 percent. The rest of the periodic table, Elements 3 through 118, lithium through ununoctium, barely register on a cosmic scale. The rest of the universe, you and I included, is a rounding error."
Hydrogen: Where It All Started in Slate
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