Watch Out! UN on Alert as ‘Alien’ Visitor 3I/ATLAS Set to Brush Past Earth Soon
A new interstellar object named 3I/ATLAS - an object that entered our Solar System from outside - has caught the attention of scientists worldwide.
The International Asteroid Warning Network (IAWN), a United Nations-endorsed group that tracks space objects which might threaten Earth, has announced a special global observing campaign for this comet-like object. Under this project astronomers around the world will watch and collect data on this mysterious object at the same time.
AI-generated summary, reviewed by editors

European Space Agency releases ExoMars TGO footage of space object 3I/ATLAS.https://t.co/tCWoUA3y4L#3IATLAS #Astronomy #ufotwitter pic.twitter.com/baZGKBsTyB
— RAEFOS Network (@RAEFOSnetwork) October 7, 2025
What's the Campaign About?:
IAWN says comets are tricky to study because their glowing gas clouds and tails make it hard to pinpoint their exact position in space.
To improve how astronomers measure and predict comet paths, IAWN will run a campaign from November 27, 2025, to January 27, 2026 - focusing on 3I/ATLAS.
Astronomers who want to take part must first join a workshop before November 7, 2025.
Why All the Buzz Around 3I/ATLAS?:

A group of scientists - including Harvard's Avi Loeb - had already warned that we should pay close attention to interstellar objects like this.
🚨 BREAKING: Harvard astronomer Avi Loeb now says there is a 40% chance 3I/Atlas is alien technology pic.twitter.com/JNaXk079rm
— Pesquisador ! (@ospensadorestt) October 27, 2025
They say such objects might, in rare cases, even carry alien technology - and we should be prepared for any "black swan" (Means a rare, unpredictable event with huge impact - something that's very unlikely but can change everything if it happens, Ex: Covid 19) events.
According to Loeb, 3I/ATLAS has shown eight strange features that make it very unusual compared to normal comets:
Avi Loeb reveals that the Galileo Project is looking into whether 3I/ATLAS is alone.
— RAEFOS Network (@RAEFOSnetwork) October 13, 2025
It will be interesting to see if they authenticate our findings that indeed 3I/ATLAS does have companions.#3IATLAS #ufotwitter #Interstellar pic.twitter.com/mcLkoCJ9v6
1. Unusual Orbit: Its path is almost perfectly aligned with the planets' orbits - very unlikely to happen by chance.
2. Sunward Jet: It has a jet of material pointing toward the Sun - the opposite of what's expected for comets.
3. Massive Size: It's far heavier and faster than the previous interstellar visitors - 'Oumuamua and Borisov.
4. Precise Timing: It passed close to Mars, Venus, and Jupiter in a way that seems finely tuned.
5. Metal Clues: Its gas cloud has lots of nickel, more than iron - something usually seen in human-made alloys.
6. Low Water Content: Only about 4% water - most comets are mainly made of water.
7. Strange Light Reflection: It reflects light in a way no other comet has ever shown.
8. Coincidence with "Wow! Signal": It came from the same general direction as the famous unexplained radio signal detected in 1977.
When all these odds are multiplied, Loeb says the chances of this happening naturally are incredibly small - about one in ten quadrillion (10¹⁶).
Could We Study It Up Close?:
Sadly, no spacecraft is currently in a position to intercept 3I/ATLAS.
However, Loeb and his colleagues calculated that NASA's Juno spacecraft (near Jupiter) could have reached it if it still had enough fuel - and even a U.S. Congresswoman wrote to NASA suggesting they try.
What's Next?:
The most interesting moment will come around October 29, 2025, when 3I/ATLAS passes closest to the Sun.
If it's a technological object - like a possible alien probe - scientists expect it could show a sudden maneuver or release smaller objects near that time, using the Sun's energy to slingshot them around the Solar System.
Loeb's Galileo Project team is already preparing to monitor for any unusual activity near Earth afterward.
Loeb says "By the end of this week, it will come within 29 million kilometers from Mars," says Loeb. "There are several orbiters there that were deposited there by NASA, by the European Space Agency, by the Chinese Space Agency, and we will get much more information about it."
3I/ATLAS Mars Perseverance Rover Image
— RAEFOS Network (@RAEFOSnetwork) October 4, 2025
NASAs Mars Perseverance rover acquired this image using its onboard Right Navigation Camera (Navcam). The camera is located high on the rovers mast and aids in driving.
Original Photo and then our edit.
This image was acquired on Oct.… pic.twitter.com/pULtINxPVB
Loeb acknowledged scientists will hopefully get an image with a 30-kilometer pixel size, and examine the brightest pixel to infer how big the object is
New data from the International Gemini Observatory revealed the object has grown in its estimated size, with it now weighing more than 33 billion tons.
New observations from the Very Large Telescope in Chile reveal that 3I/ATLAS is emitting high amounts of nickel in its gaseous coma, alongside smaller traces of iron.https://t.co/6usBKvHMpx#ufotwitter
— RAEFOS Network (@RAEFOSnetwork) October 2, 2025
An amateur astronomer captured these images when he pointed his telescope at 3I/ATLAS. @DobsonianPower on YouTube https://t.co/gG0PdGB4mC #ufotwitter #3iatlas pic.twitter.com/ewyQRKCcgb
— RAEFOS Network (@RAEFOSnetwork) October 2, 2025
Closest to Earth on Dec 19:
3I/ATLAS will pass closest to Earth on December 19, 2025
By Christmas, scientists hope to have a clearer idea whether it's just another odd comet - or something far more intriguing from beyond our Solar System.












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