NASA's Hubble Space Telescope has calculated the size of a massive comet nucleus observed last year, and it's the largest ever spotted, measuring 80 miles across —about twice the width of Rhode Island ...
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Newly visible, city-size 'green comet' will soon be ejected into interstellar space — just like 3I/ATLAS
A striking "green comet" about the size of a small city is lighting up the night sky as it nears Earth next week. Experts predict the hefty iceball may soon be permanently ejected from the solar ...
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