Named by the Polish astronomers who found them, the planets could be just two of millions floating through the galaxy. So far, though, scientists have only managed to locate a dozen or so rogues, which is why adding these two to the bunch is deemed important.
Dziewanna, which was discovered by Polish scientists at Warsaw Uni, is estimated to be 470 kilometres across, making its surface one-seventh of the Moon’s and one of the 40 largest known objects in the Solar System.
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