Atom & Cosmos

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Illustration of exoplanet CI Tau b

CLOSE UP  Scientists have found an exoplanet 11 times the mass of Jupiter cuddling up to a young star (similar to one illustrated here). The newfound planet, which orbits its 2-million-year-old star once every nine days, could help scientists understand how large planets form near their stars.

Earth tectonic diagram

TECTONIC TIMETABLE  Plate tectonics will grind to a halt in a few billion years, researchers predict. A computer simulation calculated how heat flows through a planet’s interior, including this snapshot during a period of active plate tectonics.

comet 67P

KEY INGREDIENTS  Phosphorus and glycine, both essential to life, have been found at comet 67P, seen in this March 29 picture from the Rosetta spacecraft.

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