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A metallic odyssey, what's causing sunspots and more reader feedback

Your letters and comments on the August 20, 2016 issue of Science News

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1:30pm, October 5, 2016

Metallic odyssey

Scientists are getting closer to turning hydrogen into a solid metal, Emily Conover reported in “Chasing a devious metal” (SN: 8/20/16, p. 18).

“If, as some scientists think, [metallic hydrogen] formed under intense pressure remains solid at room temperature, why don’t we find any on our planet?” asked Michael Brostek. “If formed in a star that subsequently explodes, wouldn’t some make its way to us like other elements we have that were formed within stars?”

“We do not believe that conditions exist in stars for solid metallic hydrogen to form,” says Harvard University physicist

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