BREAKING🚨: Astronomers have detected a mysterious new object C/2025 V1 Borisov, moving between 3IATLAS and Earth with no tail pic.twitter.com/3mKeuh5N6F
— All day Astronomy (@forallcurious) November 7, 2025
- C/2025 V1 (Borisov), discovered November 2, 2025, by amateur astronomer Gennadii Borisov, is the second interstellar comet he identified after 2I/Borisov in 2019, confirmed by its hyperbolic orbit (eccentricity 1.01) and faint 12th-magnitude coma without a tail.
- The post highlights its trajectory appearing to pass between Earth and 3I/ATLAS—the third known interstellar object, a Manhattan-sized comet inbound from outside our solar system—sparking viral theories of alien probes, though orbital data shows it's an independent natural body on a 112° inclined path.
- Visible now in Virgo with telescopes (rising pre-dawn), it nears perihelion November 16, 2025, at 0.46 AU from the Sun, with closest Earth approach November 11 at 0.69 AU, potentially brightening but unpredictable due to cometary outgassing variability per JPL models.
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