Radio Signals from Comet 3I/ATLAS Reignite Debate on Its Origin

As it approached the Sun, some of this ice underwent sublimation — a process where the substance transitions directly from a solid to a gas — which explains the change in the comet’s coloration, showing bluish hues after perihelion. Researchers are now preparing to detect new radio signals from 3I/ATLAS. In March 2026, the interstellar comet will pass close to Jupiter, at a distance of approximately 50 million kilometers. Preliminary studies conducted by the International Asteroid Warning Network (IAWN) suggest that 3I/ATLAS was formed in another stellar system and was ejected into space where it drifted for millions of years before reaching the Solar System.