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International Business Times UK
International Business Times UK
Briane Nebria

3I/ATLAS Shock: Scientists Reveal Comet Is 'True Outsider' With Alien Chemistry

Fifty years after its launch, a defunct Soviet satellite, Kosmos 482, is on a collision course with Earth, with a significant chunk predicted to land between 9th and 13th May. (Credit: Pixabay)

In a universe where history is usually measured in billions of years, a relic that may have existed before time as we know it has just come to visit us. An interstellar wanderer has streaked through our cosmic backyard for the third time in recorded history, giving us a brief, mysterious look at a star system that may no longer exist. This icy visitor, known as 3I/ATLAS, is now leaving in style, but not before leaving the scientific community both excited and very divided.

The ATLAS survey in Chile first saw the object on July 1, 2025. It was very fast, moving at 58 kilometers per second, which made it stand out right away. The comet's path was very hyperbolic, with an eccentricity of 6.139, which is the highest ever recorded for an interstellar object.

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