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Fizzing Sodium Could Explain Asteroid Phaethon’s Cometlike Activity

16 Aug 2021, 16:31 UTC
Fizzing Sodium Could Explain Asteroid Phaethon’s Cometlike Activity NASA/JPL-Caltech/IPAC

Models and lab tests suggest the asteroid could be venting sodium vapor as it orbits close to the Sun, explaining its increase in brightness.

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