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The Latest Breaking News from 3I

Interstellar comet 3I/ATLAS reveals weird wobbling jets in rare sun-facing tail

3I/ATLAS may have moved away from Earth as it makes its way out of the solar system, but this interstellar intruder continues to delight and surprise astronomers.

Space

How 2025 became the year of comet: The rise of interstellar 3I/ATLAS, an icy Lemmon and a cosmic SWAN

Highlights from a cometary trio that captured our imaginations.

Space

Farewell, comet 3I/ATLAS! Interstellar visitor heads for the outer solar system after its closest approach to Earth

3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar system.

Space

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Comet 3I/ATLAS reaches closest point to Earth: How to see it on Friday night

Comet 3I/ATLAS, the third interstellar object ever detected, reached its closest point to Earth overnight from Thursday to Friday (Dec. 18 to 19), and it remains in a good viewing position tonight. Here's how to see it.

LiveScience

Scientists detect X-ray glow from interstellar comet 3I/ATLAS extending 250,000 miles into space

A rare interstellar comet has been caught in X-rays by two space telescopes, revealing how its gases interact with charged particles from the sun as it travels through the inner solar system.

Space

Interstellar comet 3I/ATLAS will reach its closest point to Earth this Friday. Here’s what to know.

The interstellar comet 3I/ATLAS will reach its closest point to Earth on December 19, giving astronomers a closer look at the mysterious visitor before it leaves our Solar System forever.

Euronews

Interstellar comet 3I/ATLAS makes its closest approach to Earth tonight: Here's what you need to know

The interstellar comet will pass safely by Earth, giving astronomers their best chance to study it up close.

Space

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The UN's International Asteroid Warning Network is closely watching comet 3I/ATLAS. Here's why.

Tracking comets accurately is hard. A new effort with the U.N. and NASA aims to better chart these visitors using 3I/ATLAS.

LiveScience

Comet 3I/ATLAS is getting greener and brighter as it approaches Earth, new images reveal

New images taken with the Gemini North telescope in Hawaii confirm that the interstellar comet 3I/ATLAS has gotten brighter and greener since its close flyby of the sun in October.

LiveScience

3I/ATLAS Update: Harvard's Avi Loeb Says Experts 'Dismiss' Evidence Comet Could Be Technological-Origin

Harvard's Avi Loeb accuses scientists of rejecting his theory that the interstellar visitor 3I/ATLAS is technological, citing its unusual chemistry and 'heartbeat'.

International Business Times UK

3I/ATLAS 'Dead Rock Comes to Life': Interstellar Visitor Stuns Scientists With Violent Eruption Activity

Interstellar visitor 3I/ATLAS erupted with violent ice volcanoes, shifting from quiet ice ball to active body, sparking debate over natural causes or something more mysterious.

International Business Times UK

3I/ATLAS Comet Carries Key Molecule For Life From Another Star

An alien comet from another star, 3I/ATLAS, is spewing vast amounts of methanol, a key molecule for life. Scientists reveal what this shocking discovery means for life across the Galaxy.

International Business Times UK

3I/ATLAS Mystery Deepens: Swarm of Particles Makes Interstellar Object 100 Times Larger

Hubble images of interstellar comet 3I/ATLAS reveal an inexplicable sunward anti-tail, shocking scientists. Is the massive, 46km object a natural wonder or alien technology?

International Business Times UK

3I/ATLAS Anti-Tail Extension: Harvard Claims 60,000 Km Separation Was Predicted

Hubble images confirm a radical Harvard theory: the interstellar comet 3I/ATLAS is fragmenting, validating Professor Loeb's prediction of a 60,000 km fragment separation.

International Business Times UK

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LiveScience

New NASA, ESA images show 3I/ATLAS getting active ahead of its close encounter with Earth

NASA and ESA both shared new images of the interstellar comet 3I/ATLAS this week, as the agencies gear up for the mysterious object's closest approach to Earth on Dec. 19.

International Business Times UK

New 3i Atlas Hubble Photos Show Interstellar Object Is A Comet - But Why Does It Pulsate Like A Heartbeat?

Hubble confirms interstellar object 3I/ATLAS is an active comet, with pulsating jets sparking curiosity but consistent with normal cometary activity.

International Business Times UK

3I/ATLAS Data Reignites Ice-Volcano Feud And Experts Can't Agree What It Means

Fresh data on 3I/ATLAS show dramatic outgassing, CO₂-rich emissions, and possible 'ice volcanoes,' challenging conventional comet theory and reopening a fierce astrophysical debate over whether the object is a natural comet or something far stranger.

International Business Times UK

New 3I/ATLAS Images Show Possible Ice Volcanic Eruptions on Interstellar Object - Alien Life Considered

New images of interstellar object 3I/ATLAS suggest ice volcano eruptions as scientists study its ancient chemistry and debate whether such bodies could host life.

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LiveScience

Interstellar comet 3I/ATLAS is erupting in 'ice volcanoes', new images suggest

Scientists have observed cryovolcanoes erupting on comet 3I/ATLAS — giving us a new clue about what's inside it.

International Business Times UK

NASA HiRISE Photos of 3I/ATLAS Fuel Alien Frenzy as Conspiracy Theorists Insist the Agency Is Concealing the Truth

Instead of the sharp, groundbreaking visuals many expected, the recently unveiled images were surprisingly blurry, a result that has only intensified speculation about what the comet truly is.

International Business Times UK

3I/ATLAS Update: UN Confirms Comet Is Subject Of Formal Planetary-Defence Exercise

The official UN/IAWN document confirms the interstellar comet 3I/ATLAS is the target of a formal planetary-defence exercise.

International Business Times UK

What Does the I in Comet 3I/ATLAS Stand For? Frequently Asked Questions Answered

Uncover the secrets of Comet 3I/ATLAS, the rare interstellar visitor of 2025. Learn its alien origins, ancient chemistry, and how to spot it before it vanishes.

LiveScience

Comet 3I/ATLAS gallery: See NASA's long-awaited images of interstellar visitor

NASA's treasure trove of new comet 3I/ATLAS images provides hotly anticipated views of the interstellar visitor, including from Mars and the sun.

Space

NASA reveals new images of interstellar comet 3I/ATLAS from across the solar system: 'It looks and behaves like a comet'

NASA has pointed its fleet of spacecraft at comet 3I/ATLAS to collect new footage of the interstellar invader. The agency has also said "all evidence points to it being a comet."

Space

Interstellar comet 3I/ATLAS shines in new image captured after close pass by the sun (photo)

"For me, it is particularly interesting to see how such an interstellar object evolves."

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