Astronomy News 28 November 2025

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: Cryovolcanoes, Expanding Coma and ‘Heartbeat’ Pulses – Latest Updates as of December 3, 2025

Published: December 3, 2025 Interstellar comet 3I/ATLAS – only the third known visitor from another star system – is putting on one of the strangest shows astronomers have ever seen. In the last 48 hours alone, new research and images have revealed:

3 December 2025

Astronomy · Astrophysics · Comets · Scientific Discoveries · Space Exploration

Interstellar Comet 3I/ATLAS: Latest Discoveries, Alien Debate and How to See It in December 2025

Interstellar comet 3I/ATLAS is turning December 2025 into one of the most dramatic months in modern astronomy. The icy visitor from another star system is firing powerful jets, showing signs of possible “ice volcanoes,” pulsing with a 16‑hour light pattern and inspiring

2 December 2025

Astronomy · Comets · Science News · Space Exploration · Stargazing

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

Updated December 2, 2025 Key facts about the December 2025 full moon As of today (December 2, 2025), newsrooms, astronomy outlets and astrology sites around the world are all homing in on this moon as one of the headline sky events

2 December 2025

Astronomy · Celestial Events · Moon Phases · Night Sky · Supermoons

Interstellar Comet 3I/ATLAS Is Erupting, Pulsing and Powering Planetary‑Defense Drills Ahead of Its December 19 Flyby

Interstellar comet 3I/ATLAS – also known as C/2025 N1 (ATLAS) – has gone from obscure discovery to the most talked‑about object in the Solar System in just a few months. As of December 2, 2025, astronomers are reporting: All of this is happening while NASA,

2 December 2025

Astronomy · Comets · Planetary Defense · Science Updates · Space News

Interstellar Comet 3I/ATLAS Makes Closest Approach to Earth on December 19, 2025 — How to See It and Why It Matters

Updated December 1, 2025 On Friday, December 19, 2025, an ancient visitor from another star system will make its closest pass to Earth. Interstellar comet 3I/ATLAS will sweep by at a distance of about 170 million miles (270 million kilometers) — nearly twice as

2 December 2025

Astronomy · Comets · Science News · Space Exploration · Stargazing

December 2025 Night Sky Guide: Supermoon, Geminids and Interstellar Comet 3I/ATLAS Light Up the Month

December 2025 is shaping up to be one of the most exciting skywatching months in years. As of December 1, space agencies and observatories are rolling out fresh forecasts: NASA has just published its “What’s Up: December 2025”guide, National Geographic has

2 December 2025

Astronomy · Celestial Phenomena · Night Sky · Space Events · Stargazing

Interstellar Comet 3I/ATLAS: NASA Confirms Natural Visitor as UN Turns It into a Planetary‑Defense Drill

As of 1 December 2025, interstellar comet 3I/ATLAS is racing back out of the inner solar system, sparking a rare combination of hard science, UN‑level planetary‑defense drills and loud public debate over whether this icy visitor is “just” a comet or something more

1 December 2025

Astronomy · Comets · NASA Updates · Planetary Defense · Space News

Interstellar Comet 3I/ATLAS: Latest NASA, ESA and UN Updates on the 3I ATLAS Comet (30 November 2025)

Published: 30 November 2025 Interstellar comet 3I/ATLAS – also known as C/2025 N1 (ATLAS) or simply the 3I ATLAS comet – is racing out of the inner solar system after a dramatic swing around the Sun. It’s only the third known object ever seen entering our neighbourhood from

30 November 2025

Astronomy · Comets · NASA News · Science Updates · Space Exploration

Comet 3I/ATLAS Today: NASA, UN Drill and Alien‑Probe Claims Explained (Nov. 29, 2025)

The interstellar comet 3I/ATLAS is now sweeping back out of the inner solar system, but the news cycle around it is only getting hotter. On November 29, 2025, new headlines are mixing hard data from NASA and the UN with high‑profile speculation from

29 November 2025

Astronomy · Comets · Extraterrestrial Life · NASA · Space Exploration

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 · NASA Updates · Planetary Defense · 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 · Comet Discoveries · NASA News · Planetary Defense · Space Exploration

Astronomy News 28 November 2025 - 4 December 2025