The Acid Test of 3I/ATLAS at Perihelion | by Avi Loeb | Oct, 2025

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Mercury transiting the Sun in 2006, as imaged by the Hinode spacecraft. (Image credit: JAXA/NASA/PPARC)

On October 29, 2025, the interstellar object 3I/ATLAS will get to the closest distance of 203…

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