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Space sciences/Planetary science/Exoplanetary science/Astrogeology/Planetary interiors

NASA's MESSENGER mission to Mercury needs your help naming geological features on the planet's surface!

A distant planet named HR 8799c, located 130 light-years outside of our solar system, has water and carbon monoxide—but not methane—in its atmosphere, researchers say. Their findings suggest that a particular planet-forming mechanism, known as core accretion, brought the young planet into existence.