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3I/ATLAS

Interstellar Comet 3I/ATLAS: Ice Volcanoes, Life’s Building Blocks and the December 19 Flyby — Latest Updates as of December 8, 2025

Interstellar Comet 3I/ATLAS: Ice Volcanoes, Life’s Building Blocks and the December 19 Flyby — Latest Updates as of December 8, 2025

As of December 8, 2025, interstellar comet 3I/ATLAS (also known as C/2025 N1 (ATLAS)) has gone from an obscure discovery to a global headline-maker. New observations are revealing cryovolcano‑like eruptions, an atmosphere rich in prebiotic molecules, and spectacular images from NASA and ESA ahead of its December 19 close approach to
Interstellar Comet 3I/ATLAS: Ice Volcanoes, Radio ‘Signals’ and a Planetary‑Defense Drill as It Skims Past Earth This Month

Interstellar Comet 3I/ATLAS: Ice Volcanoes, Radio ‘Signals’ and a Planetary‑Defense Drill as It Skims Past Earth This Month

Updated: December 4, 2025 A once‑in‑a‑lifetime interstellar visitor is putting on its strangest act yet. New observations released in the last few days suggest that the comet 3I/ATLAS – only the third known object to enter our solar system from another star – is:
4 December 2025
Interstellar Comet 3I/ATLAS on November 28, 2025: UN Planetary‑Defence Drill, NASA’s Verdict and How to See It

Interstellar Comet 3I/ATLAS on November 28, 2025: UN Planetary‑Defence Drill, NASA’s Verdict and How to See It

Published: November 28, 2025 Interstellar comet 3I/ATLAS – only the third known object from another star system to visit our Solar System – has just stepped into a new role. As of today, it’s the centerpiece of a United Nations–endorsed planetary‑defence exercise, the
Interstellar Comet 3I/ATLAS Today: UN Planetary‑Defense Drill, New “Anomaly” Images and How to See It – November 26, 2025

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
26 November 2025
Interstellar Comet 3I/ATLAS on 18 November 2025: New Multi‑Tailed Image, NASA’s Big Reveal and a Planetary‑Defense Rehearsal

Interstellar Comet 3I/ATLAS on 18 November 2025: New Multi‑Tailed Image, NASA’s Big Reveal and a Planetary‑Defense Rehearsal

Updated 18 November 2025 Interstellar comet 3I/ATLAS is having a huge day in the headlines. As of today, 18 November 2025, astronomers have unveiled a spectacular new multi‑tailed image, NASA has confirmed details of a live global broadcast tomorrow to share the sharpest spacecraft
18 November 2025
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