How was the cosmic microwave background discovered?
Daniel and Kelly’s Extraordinary Universe
00:00
Was the Big Bang Infinitely Dense and Super Duper Hot?
People thought that the heavy elements could have been made in the big bang. They did theoretical calculations of how hot it was back then, and they decided no, it was impossible. The heavier elements were not made during the big bang. But they didn't know that at the time, until they did these calculations.
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