
Imagine catching a fleeting glimpse of a visitor from beyond your known neighbourhood, a traveller moving at impossible speeds, and then trying to plot its exact route. That's the challenge astronomers faced with 3I/ATLAS, the third confirmed interstellar object (ISO) ever observed passing through our Solar System.
Since its initial sighting on 1 July 2025 by astronomers at the Gemini South Observatory, the global scientific community has raced to constrain its origin and accurately predict its next destination.