Astronomers following interstellar comet 3I/ATLAS say its buzz has been eclipsed by a much stranger sight: a colossal, rotating chain of galaxies that may be the largest spinning object ever detected in the universe.
The structure's scale and motion are challenging existing ideas about how galaxies form and how matter flows through the cosmic web. Researchers say the enormous rotating system, which stretches millions of light-years, may prove far more important for understanding how the universe is built than the recent flyby of the interstellar comet.
