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  Interstellar comet 3I/ATLAS reaches perihelion on October 29 and accelerates exit from Solar System

  The interstellar comet 3I/ATLAS, detected on July 1, 2025, by the ATLAS telescope in Chile, reaches perihelion on October 29, 2025, at...

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  Comet 3I/ATLAS approaches perihelion and faces risk of fragmentation from solar heat

  The comet 3I/ATLAS, the third detected interstellar object, will reach perihelion on October 29, 2025, at 1.36 astronomical units from the Sun....