3I/ATLAS Changes Colour Again—NASA Baffled by Strange Shift

International Business TimesTuesday, November 4, 2025 at 10:01:30 PM
NASA and astronomers are puzzled by the interstellar object 3I/ATLAS, which has changed color to a distinctly bluer hue than the Sun. This unusual shift, along with signs of non-gravitational acceleration, has sparked curiosity and further investigation into the object's behavior.
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