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Exoplanets

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55 Cancri e

NOT LIKE HOME  Rocky super-Earth 55 Cancri e, seen in this artist’s illustration, is about Earth’s size, but a new study suggests it and other similar hot exoplanets probably formed in a completely different way than Earth did.

OPEN MIND  David Kipping has made a name for himself by taking risks and accepting failure.

illustration of a ring of debris

SLOW FADE  Tabby’s star dims strangely over the course of days and years. Explanations have ranged from a destroyed planet to a ring of debris (shown in this artist’s illustration), but new studies suggest that clouds of dust or a strange stellar cycle might be more likely.

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