Interstellar Comet 3I/ATLAS Today: UN Planetary‑Defense Drill, New “Anomaly” Images and How to See It – November 26, 2025
Published: November 26, 2025 Interstellar comet 3I/ATLAS has just gone from “cool space story” to a centerpiece of planetary‑defense practice, scientific debate and sky‑watching buzz. Today, the United Nations–backed International Asteroid Warning Network (IAWN) confirmed that 3I/ATLAS is the focus of a formal observing campaign that doubles as a planetary‑defense exercise, beginning November 27.iawn.net+2iawn.net+2 At the same time, new amateur images and analyses from Harvard astrophysicist Avi Loeb are fuelling fresh discussion about whether the comet’s jets and tail behave “too strangely” for a purely natural object, even as NASA and ESA firmly maintain that 3I/ATLAS looks and acts like an unusually extreme, but still natural, comet.WIRED+4TS2 Tech+4NASA Science+4 Below