Astronomy News 4 November 2025

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

28 November 2025

Astronomy·Skywatching·Space Exploration

Interstellar Comet 3I/ATLAS Update – UN Planetary‑Defence Drill, New Orbit Data And NASA’s Latest Verdict (28 November 2025)

As of Friday, 28 November 2025, interstellar comet 3I/ATLAS has gone from “weird new visitor” to the centerpiece of a United Nations–endorsed planetary‑defence drill, a live trajectory experiment using spacecraft around Mars, and a lightning rod for speculation about alien technology. The Times of

28 November 2025

Astronomy·NASA News·Space Exploration

3I/ATLAS Interstellar Comet: UN Planetary‑Defence Campaign Begins as Mars Data Sharpens Its Path

On 27 November 2025, interstellar comet 3I/ATLAS hits a major milestone in its brief visit through our Solar System. The United Nations’ planetary‑defence network is officially turning the comet into a live global drill, while new data from spacecraft around Mars has tightened its predicted

27 November 2025

Astronomy·Comets·Science News·Space Exploration

Interstellar Comet 3I/ATLAS Today (Nov. 27, 2025): UN Planetary‑Defense Drill Begins, New Trajectory Data and Fresh “Alien Probe” Claims

As of November 27, 2025, Earth’s newest interstellar visitor is back in the pre‑dawn sky, at the center of a United Nations planetary‑defense exercise and a wave of viral speculation. Here’s what’s actually happening with comet 3I/ATLAS today. Quick overview

27 November 2025

Astronomy·Science News·Space Exploration

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

Astronomy·Comets·Skywatching·Space News

December 2025 Full Moon: When to See the Cold Moon Supermoon and What It Means

The December 2025 full moon will be a bright Cold Moon supermoon on December 4, 2025 — the last full moon and final supermoon of the year. Here’s the exact time, why it’s special, and how to see it. Key

24 November 2025

Astronomy

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

Comet 3I/ATLAS Today: NASA’s Big Image Reveal, ISRO’s New Data and How to Follow the Interstellar Visitor (Nov. 19, 2025)

On Wednesday, November 19, 2025, the interstellar comet 3I/ATLAS is center stage: NASA is set to unveil its sharpest images yet of this rare object, while ISRO scientists in India share fresh observations from their Mount Abu telescope. Here’s everything you need

19 November 2025

Astronomy·Comets·Scientific Discoveries·Space Exploration

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

Astronomy·Comets·NASA News·Space Exploration

Interstellar Comet 3I/ATLAS Today: Tail, Radio Signal & Viewing Guide

15 November 2025 – Interstellar comet 3I/ATLAS has survived its close swing past the Sun, grown a spectacular ion tail, emitted its first detected radio signal, and had its orbit nailed down with help from a spacecraft at Mars. At

15 November 2025

Astronomy·Comets·Science News·Space Exploration·Stargazing

Rare Interstellar Comet 3I/ATLAS – a 10-Billion-Year-Old Time Capsule – Flies Past Mars

Can You See Interstellar Comet 3I/ATLAS? Naked-Eye, Camera and Telescope Guide (November–December 2025)

Interstellar comet 3I/ATLAS has rocketed into headlines: it’s only the third known visitor from another star system, it just swung around the Sun, it’s growing a dramatic tail, and it’s even been detected in radio waves – prompting a flurry of “is it aliens?” stories.

14 November 2025

Astronomy·Comets·Stargazing

Alien Probe or Cosmic Relic? Interstellar Comet 3I/ATLAS Baffles Scientists (updated 27.10.2025)

Interstellar Comet 3I/ATLAS on Nov. 9, 2025: Tail Mystery, New Jet Images, and Where to Look This Week

Updated: November 9, 2025 What’s new today Today’s snapshot: why the comet’s look is confusing Some Nov. 5–9 images show a compact coma with little obvious dust tail, which has fueled social-media claims that 3I/ATLAS is behaving “unlike a comet.”

9 November 2025

Astronomy·Comets·Science News·Space Exploration

Interstellar Comet 3I/ATLAS Stuns Scientists with Surprising Bright Outburst and Ancient Origins

A Visitor From Beyond the Solar System In July 2025, astronomers discovered something extraordinary: a dim, fuzzy comet hurtling toward the inner solar system on a path not bound to the Sun. Follow-up observations confirmed this object – now named

4 November 2025

Astronomy·Comets·Scientific Discoveries·Space Exploration

Astronomy News 4 November 2025 - 28 November 2025