A newly found interstellar comet poses absolutely no threat to Earth, but a NASA-coordinated group plans to observe it to help our ability to monitor any future objects that might prove to be hazardous.

The comet, called 3I/ATLAS, is the third known interstellar object that has come through our solar system. As it flies deeper into the solar system before leaving our cosmic neighborhood some time between Nov. 27, 2025 and Jan. 27, 2026, the International Asteroid Warning Network is kicking off a campaign to observe the comet.

The project will serve as a training ground to not only predict the orbit of 3I/ATLAS, but to perform astrometric measurements (meaning, tracking the comet's speed and motion in Earth's sky, relative to objects like stars.) This will be used to inform future observa

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