3I/ATLAS Today (Nov. 13, 2025): Interstellar comet’s tail keeps growing, ‘radio signal’ confirmed natural, and a different ATLAS comet fragments
Published Thursday, November 13, 2025 Fresh observations today keep 3I/ATLAS—the third confirmed interstellar object—firmly in the “strange but natural comet” camp. Meanwhile, a different ATLAS‑discovered comet in our solar system, C/2025 K1 (ATLAS), is visibly fragmenting. Here’s what changed today,
