Population III (PopIII) stars represent astronomy's ultimate prize: the first generation of stars born from the pristine hydrogen and helium created in the Big Bang. These theoretical giants, ...
Immediately after the Big Bang, before the first stars in the Universe ever formed, the Universe consisted of hydrogen (element #1), helium (element #2) and pretty much nothing else. Despite ...
Long before there was a periodic table of the elements, there was no need for a table — just four chairs. From ancient through medieval into early modern times, natural philosophers could count the ...
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