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Researchers believe interstellar comet Borisov is breaking apart

Since it was first discovered in August 2019, astronomers have been awestruck by interstellar Comet 2I/Borisov. But recent observations of the space object suggest that it could be breaking apart. A group of researchers from Poland have noted that the object has brightened up twice this month. “The total brightness increase is thus about 0.7 mag in 5 days between UT 2020 March 4.3 and 9.3,” the researchers wrote in a note published March 12. “This behavior is strongly indicative of an ongoing nucleus fragmentation.” It’s possible that this action was caused by 2I/Borisov’s approach toward the sun, Space.com reported. In December 2019, comet 2I/Borisov reached its closest point to the sun, 190 million miles away, known as ...