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Interstellar comet 3I/ATLAS swings by Earth this week as an early Christmas gift
Accuweather ^ | December 16, 2025 | Staff

Posted on 12/16/2025 9:06:28 AM PST by Red Badger

The Dec. 19 flyby of Comet 3I/ATLAS gives astronomers a rare chance to study only the third known interstellar object to pass through our solar system.

VIDEO AT LINK...............

Astronomers and skywatchers are hoping to spot interstellar Comet 3I/ATLAS on Dec. 19 when it makes its closest — but safely distant — flyby of Earth.

The comet has drawn global attention as only the third confirmed interstellar object observed passing through our solar system.

According to NASA, Comet 3I/ATLAS will not pose any threat to Earth during its pass. The object is expected to remain about 170 million miles from the planet on Dec. 19. Still, astronomers plan to use the flyby to learn more about this mysterious visitor.

Since its discovery in July, NASA, the European Space Agency (ESA) and other international space organizations have used ground-based telescopes and spacecraft throughout the solar system to observe Comet ATLAS. NASA’s Mars rover even captured images of the object during its close approach to the Red Planet.

More recently, NASA’s Hubble Space Telescope photographed the comet with its Wide Field Camera for the first time since July.

The National Science Foundation’s NOIRLab Gemini North telescope in Hawaii also collected new observations around Thanksgiving, revealing how the comet changed after its Oct. 30 close pass by the sun.

Earlier Gemini images showed Comet 3I/ATLAS with a reddish hue, but after swinging past the sun, it now appears with a faint greenish glow. According to NOIRLab, this shift is caused by light emitted from gases in the comet’s coma, including diatomic carbon, which glows green at certain wavelengths.

Comet 3I/ATLAS streaks across stars and galaxies in this image captured by the Gemini Multi-Object Spectrograph (GMOS) on Gemini North on Maunakea in Hawai‘i. Despite speculation surrounding the comet’s origin, NASA and ESA experts say there is no evidence it is an alien or artificial object. Its color, speed and trajectory are all consistent with natural comet behavior, NASA said.

After its March flyby of Jupiter, Comet 3I/ATLAS will depart our solar system—leaving behind new clues about the mysteries of interstellar space.


TOPICS: Arts/Photography; Astronomy; History; Outdoors
KEYWORDS: 3iatlas; comet; interstellar; naturalobject

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1 posted on 12/16/2025 9:06:28 AM PST by Red Badger
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To: MtnClimber; SunkenCiv; rktman; mowowie; SuperLuminal; Cottonbay; telescope115; laplata; ...

Ping!...............


2 posted on 12/16/2025 9:06:54 AM PST by Red Badger (Iryna Zarutska, May 22, 2002 Kyiv, Ukraine – August 22, 2025 Charlotte, North Carolina Say her name)
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To: Red Badger

But, but, but, I thought someone, named Avie, said it was a spaceship!!!


3 posted on 12/16/2025 9:09:42 AM PST by RetiredArmy (The Bible speaks truth! Don't believe it, you do so at your own peril. You'd better be right!!)
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To: Red Badger

Has it signaled us yet?


4 posted on 12/16/2025 9:09:50 AM PST by GingisK
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To: GingisK

No turn signals on that model................


5 posted on 12/16/2025 9:11:41 AM PST by Red Badger (Iryna Zarutska, May 22, 2002 Kyiv, Ukraine – August 22, 2025 Charlotte, North Carolina Say her name)
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To: Red Badger

Perfect for driving around my town.


6 posted on 12/16/2025 9:12:16 AM PST by GingisK
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To: GingisK

Mexicans don’t use turn signals, I have learned..................


7 posted on 12/16/2025 9:13:32 AM PST by Red Badger (Iryna Zarutska, May 22, 2002 Kyiv, Ukraine – August 22, 2025 Charlotte, North Carolina Say her name)
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To: Red Badger

The real alien invasion begins....


8 posted on 12/16/2025 9:13:32 AM PST by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: MtnClimber

If this thing starts slowing down, then we can panic..............


9 posted on 12/16/2025 9:14:00 AM PST by Red Badger (Iryna Zarutska, May 22, 2002 Kyiv, Ukraine – August 22, 2025 Charlotte, North Carolina Say her name)
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To: Red Badger
Mexicans don’t use turn signals, I have learned..............

Its a sign of weakness. Besides, it just makes the other drivers start their blocking maneuvers early.

10 posted on 12/16/2025 9:15:17 AM PST by GingisK
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To: Red Badger

Apparently there is a ‘turn signal delete’ option available on some newer vehicles.......🤔😊👍


11 posted on 12/16/2025 9:20:30 AM PST by rktman (Destroy America from within? On hold! Enlisted USN 1967 proudly. 🚫💉! 🇮🇱🙏! Winning currently!)
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To: Red Badger

Wait til it hits 88 kilometers per second...


12 posted on 12/16/2025 9:25:30 AM PST by bigbob (We are all Charlie Kirk now)
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To: GingisK
>>>start their blocking maneuvers early

Had a co-worker that was from the Philippines who said he was a very good defensive driver.

*Raoul, defense in driving is not like defense in sports!

**It’s not?

*No!

13 posted on 12/16/2025 9:30:07 AM PST by Deaf Smith (When a Texan takes his chances, chances will be taken that's for sure.)
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To: Red Badger

Nice, short video.

https://www.accuweather.com/en/videos/b7339efa-9ef6-4516-aea2-69ef1e95f431


14 posted on 12/16/2025 9:51:54 AM PST by SunkenCiv (NeverTrumpin' -- it's not just for DNC shills anymore -- oh, wait, yeah it is.)
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To: Red Badger

There was a Star Trek episode in 1994 where the Enterprise discovered a rogue comet that had an ancient ship hidden under its ice shell. I’m thinking that’s where all this wishful thinking has been coming from.


15 posted on 12/16/2025 9:53:39 AM PST by mikey_hates_everything
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To: mikey_hates_everything

Rendezvous With Rama!........


16 posted on 12/16/2025 9:56:43 AM PST by Red Badger (Iryna Zarutska, May 22, 2002 Kyiv, Ukraine – August 22, 2025 Charlotte, North Carolina Say her name)
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To: Red Badger

Let me guess, it will be 30 lunar distances away from earth. That’s what “fly-by” means in astro terms.


17 posted on 12/16/2025 10:05:46 AM PST by fwdude (Why is there a "far/radical right," but damned if they'll admit that there is a far/radical left)
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To: Red Badger

That’s when the alien ships will depart to come home to Earth.

I don’t know about you, but I welcome our new little grey overlords.

//sarcasm


18 posted on 12/16/2025 10:11:47 AM PST by Vermont Lt
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To: Red Badger

19 posted on 12/16/2025 10:29:06 AM PST by RasterMaster ("Towering genius disdains a beaten path." - Abraham Lincoln)
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To: RasterMaster

Aline probably ride past the Earth and laugh their asses off.............


20 posted on 12/16/2025 10:38:59 AM PST by Red Badger (Iryna Zarutska, May 22, 2002 Kyiv, Ukraine – August 22, 2025 Charlotte, North Carolina Say her name)
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