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International Business Times UK
International Business Times UK
Briane Nebria

3I/ATLAS: Forensic Review Claims Razor-Sharp Anti-Tail Indicates 'Propulsion'

3I/Atlas Comet (Credit: European Southern Observatory ESO))

The moment Austrian astrophotographer Michael Jäger unveiled his latest image of 3I/ATLAS on Nov. 28, 2025, the existing puzzle surrounding this interstellar traveller became a bona fide mystery. Discovered in July 2025 by the ATLAS survey, 3I/ATLAS is only the third confirmed interstellar object ever observed passing through our Solar System, after ʻOumuamua and 2I/Borisov.

Astronomers confirmed its origin beyond our system due to its extremely high velocity — approximately 210,000 km/h — which places it on a hyperbolic, or escape, trajectory that is not gravitationally bound to the Sun. This wasn't merely another beautiful comet photograph; it was a piece of forensic evidence. A razor-sharp anti-tail, clearly visible and aimed directly towards the Sun, appeared to break every known rule of cometary physics, immediately triggering intense scrutiny from astronomers and investigators globally.

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