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Tale as old as time. ☄️

Unusual asteroid Phaethon behaves like a comet. It brightens and forms a tail as it nears the Sun and is the source of a meteor shower, something usually led by comets. But this asteroid's tail tells a different story:
go.nasa.gov/3LHmtQs
#NASA

Asteroid’s Comet-Like Tail Is Not Made of Dust

NASA solar observatories have revealed that asteroid Phaethon's comet-like tail is made of sodium escaping the asteroid, not dust as scientists had long thought.
Vanessa Thomas (NASA)
#NASA

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