This story was updated April 4 at 12:24 p.m. EDT. Hydrogen is the most common element in the universe, but why is that? To answer this question, "we need to go back to the Big Bang," said May Nyman, a ...
The most abundant element in the universe, hydrogen is also a promising source of "clean" fuel on Earth. Pure hydrogen gas is scarce in Earth's atmosphere and any hydrogen that actually enters the ...
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