A stray comet from another star system is swinging past Earth before racing back into the interstellar void
Sandeep K S
Dec 15, 2025
1 min read
Meet Comet 31/Atlas: An interstellar traveler making its third known passage through our solar system. Estimated to be up to 3.5 miles wide, it will approach Earth at 167 million miles on December 15, 2025, before heading past Jupiter in March and making its final departure in the mid-2030s.
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