Sunday, January 4, 2015

Neil deGrasse Tyson on the Big Bang and Heavy Elements

A fan asks why wasn’t there enough pressure to create elements heavier than hydrogen and helium in whatever started the Big Bang? As Neil deGrasse Tyson explains to comic co-host Chuck Nice, the answer lies in the rapid expansion and temperature of the early universe. Neil talks about how stars create heavier elements, and why we have such high confidence in our understanding of conditions after the Big Bang.

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