Distant rocky planets may have exotic chemical makeup

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Debris on white dwarf stars offers a possible peek inside the worlds that once orbited them

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If a real Captain Kirk ever blasts off for other stars in search of rocky planets like

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he may find lots of strange new worlds whose innards actually bear no resemblance to Earth’s.

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A smattering of heavy elements sprinkled on 23 white dwarf stars suggests

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the rocky planets that once orbited the stars had unusual chemical makeups

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researchers report online November 2 in Nature Communications. The elements, presumably debris from busted-

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These planets could be just utterly alien to what we’re used to thinking of,” says geologist Keith

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