Comet

Night Sky Tonight (December 19, 2025): How to See Interstellar Comet 3I/ATLAS, Catch New Moon Darkness, and Get Ready for the Ursid Meteor Shower

Friday, December 19, 2025 brings a rare “headline night” for skywatchers: an interstellar comet is making its closest pass by Earth, the Moon is slipping into (or extremely near) a New Moon phase that darkens the sky, and the year’s

19 December 2025

Comet 3I/ATLAS Today (Dec. 19, 2025): Closest Earth Flyby, New NASA/ESA Updates, and How to Watch Live

In the early hours of Friday, December 19, 2025, an icy visitor from beyond our Solar System swept through our cosmic neighborhood—not close enough to scare anyone, but close enough to thrill astronomers. Comet 3I/ATLAS (also known by its formal designation C/2025 N1

19 December 2025

Astronomy · Comets · NASA Updates · Skywatching · Space News

Comet 3I/ATLAS Today: Interstellar Visitor Nears Closest Approach to Earth — What’s Happening on Dec. 18, 2025 and How to Watch

December 18, 2025 — The interstellar comet 3I/ATLAS (sometimes written as 3I/Atlas) is back in the spotlight today as it heads into a key milestone: its closest approach to Earth early Friday, Dec. 19. It won’t be a dramatic “near miss” in everyday terms—NASA emphasizes the comet

18 December 2025

Astronomy Events · Comets · Interstellar Objects · Observing Tips · Space News

Night Sky Tonight (Dec. 18, 2025): Watch Interstellar Comet 3I/ATLAS Live, Plus Moon–Mercury Dawn Pairing, Jupiter and Aurora Chances

Dec. 18, 2025 — If you’re planning to look up tonight, the sky has a rare mix of “big news” and easy wins. The headline event is an interstellar visitor—Comet 3I/ATLAS—making its closest pass by Earth (and getting a free livestream).

18 December 2025

Astronomy · Comets · Night Sky · Planetary Events · Stargazing

Interstellar Comet 3I/ATLAS Today: Latest Dec. 17, 2025 Updates Ahead of Its Dec. 19 Earth Flyby

Two days before it reaches its closest point to Earth, interstellar comet 3I/ATLAS is giving astronomers and serious backyard skywatchers a rare, time-limited opportunity: observe a visitor that formed around another star, then wandered into our solar system on a one-way trip

18 December 2025

Astronomy · Comets · Earth Events · Science News · Space Exploration

Comet 3I/ATLAS Today: Latest News, Science Updates, and How to See the Rare Interstellar Comet Before Its Dec. 19, 2025 Flyby

Updated Wednesday, Dec. 17, 2025 — Interstellar comet 3I/ATLAS (also referenced as C/2025 N1 (ATLAS)) is now just two days from its closest approach to Earth, and today’s coverage spans everything from practical skywatching advice to fresh scientific analysis of the comet’s “non‑gravitational” motion. Space+1 On Friday,

17 December 2025

Astronomy · Comet Sightings · Interstellar Objects · Skywatching · Space Science

Comet 3I/ATLAS Today (Dec. 16, 2025): Interstellar Visitor Nears Closest Approach to Earth on Dec. 19

As of Tuesday, December 16, 2025, the interstellar comet known as 3I/ATLAS—a rare visitor from beyond our solar system—is drawing intense attention ahead of its closest approach to Earth on Friday, Dec. 19. Despite dramatic headlines and online rumors, reputable agencies are consistent

16 December 2025

Astronomy · Comets · Interstellar Objects · Science Updates · Space News

Interstellar Comet 3I/ATLAS Nears Closest Earth Flyby on Dec. 19: New X‑ray Views, UN Tracking, and What Scientists Know Now

December 15, 2025 — A rare visitor from beyond our solar system is making its final, headline-worthy sweep through the inner neighborhood — and the countdown to its closest pass by Earth is nearly over. Interstellar comet 3I/ATLAS (also designated C/2025 N1 (ATLAS)) will

15 December 2025

Astronomy · Comets · Earth Flybys · Scientific Discoveries · Space Exploration

Night Sky Tonight (Dec. 15, 2025): Geminids Encore, Orion Nebula Peak, and a Rare Interstellar Comet Turns Green

December 15, 2025 brings a near-perfect recipe for skywatchers: long winter nights, a slim waning Moon, and a sky full of headline-worthy targets—plus a rare interstellar visitor that’s suddenly glowing green in new images. With the winter solstice now just days away, the Northern Hemisphere

15 December 2025

Astronomy · Comets · Meteor Showers · Night Sky · Stargazing

Comet 3I/ATLAS Today (Dec. 15, 2025): The Interstellar Visitor Turns Green Ahead of Its Dec. 19 Flyby

On December 15, 2025, the solar system’s most talked-about “visitor” is back in headlines for two very comet-like reasons: it’s brightening and it’s glowing green. The object is Comet 3I/ATLAS—often shortened to “3I/Atlas comet”—the third confirmed interstellar object ever found passing through our neighborhood, after 1I/ʻOumuamua (2017) and 2I/Borisov (2019).

15 December 2025

Astronomy · Celestial Events · Comets · Interstellar Objects · Space Exploration

Comet 3I/ATLAS: Green-Glowing Interstellar Visitor Nears Its Closest Earth Pass on Dec. 19, 2025

Updated: December 14, 2025 A rare messenger from another star system is sliding through our solar system right now—and it’s putting on a subtle but scientifically rich show. Comet 3I/ATLAS (also designated C/2025 N1 (ATLAS)) is only the third confirmed interstellar object ever observed inside

14 December 2025

Astronomy · Comets · Interstellar Objects · Night Sky · Space News

Comet 3I/ATLAS Update (Dec. 13, 2025): New Green Glow, First X‑Ray Views, and What’s Next for the Interstellar Visitor

On December 13, 2025, Comet 3I/ATLAS—the third confirmed interstellar object ever found crossing our solar system—is back in the headlines as astronomers release fresh observations that deepen the mystery (and the science) of this rare cosmic flyby. It’s not just

13 December 2025

Astronomy · Astrophotography · Comets · Scientific Discoveries · Space Exploration