Rare Earth element found far, far away
Nearly 13.7 billion years ago, the universe was made of only hydrogen, helium and traces of lithium — byproducts of the Big Bang. Some 300 million years later, the very first stars emerged, creating additional chemical elements throughout the universe. Since then, giant stellar explosions, or supernovas, have given rise to carbon, oxygen, iron and the rest of the 94 naturally oc Source: Massachusetts Institute of Technology - Discipline: Astronomy...
Source: LabSpaces - Tuesday, 21 February
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