https://www.nasa.gov/feature/goddard/2023/sun/asteroid-s-comet-like-tail-is-not-made-of-dust-solar-observatories-reveal
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4/25/23 at 1:07pm
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NASA
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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.
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