The Largest Comet Ever Found Is Making Its Move Into a Sky Near You
The New York Times
By 2031, you may be able to spot the icy object in night skies with a good telescope.
Astronomers spy rocky and icy wanderers of all shapes and sizes zipping past Earth all the time. But earlier this month, they were flabbergasted when they caught sight of the largest comet they’d ever seen. One of its discoverers, Pedro Bernardinelli, an astrophysicist at the University of Pennsylvania, conservatively estimates the object’s dusty, icy nucleus is between 62 and 125 miles long. That means this comet is as small as five Manhattan Islands, or it’s larger than the Island of Hawaii. Hale-Bopp, which lit up night skies in the late 1990s with its 25-mile-long nucleus, was long perceived to be a giant among comets. But the nucleus of this comet, Comet C/2014 UN271, “is still two or three Hale-Bopps across,” said Teddy Kareta, a planetary astronomy graduate student at the University of Arizona. “It’s just wild.” “With a reasonable degree of certainty, it’s the biggest comet that we’ve ever seen,” said Colin Snodgrass, an astronomer at the University of Edinburgh.
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