https://www.pbs.org/newshour/science/earth-prepares-for-a-close-encounter-with-the-green-comet-not-seen-since-the-stone-age
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Earth prepares for a close encounter with the ‘Green Comet;’ not seen since the Stone Age - PBS NewsHour
1/27/23 at 6:47pm
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News Science Earth NASA NewsHour A Stone Age
A comet is streaking back our way after 50,000 years. NASA says the dirty snowball last visited during Neanderthal times. It will come within 26 million miles of Earth.
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