Distant rocky planets may have exotic chemical makeup

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

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

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

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

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

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

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

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