Interstellar object 3I/ATLAS, traveling at record-breaking speed, entered the Sun’s plasma zone, where its structure quietly disintegrated under extreme conditions, leaving scientists both astonished and unnerved at the Sun’s destructive power.

3I/ATLAS and the Sun: Harvard Prof. Avi Loeb detects new anomaly in the  interstellar visitor - Science

Astronomers around the world are grappling with an unprecedented cosmic event as interstellar object 3I/ATLAS entered the Sun’s plasma zone, revealing structural changes that defy all expectations.

First detected on November 17, 2025, the object had already piqued the interest of researchers due to its extreme velocity, traveling at nearly 58 kilometers per second.

As it accelerated toward the Sun, its speed climbed to an astonishing 68 kilometers per second, placing it among the fastest objects ever observed in the inner Solar System.

From the beginning, astronomers suspected that 3I/ATLAS was no ordinary comet.

Its trajectory, smooth and stable despite such extreme speeds, suggested a remarkable resilience.

“We’ve seen fast-moving comets before, but nothing behaves like this,” said Dr.Elena Marquez, a planetary scientist at the European Southern Observatory.

“It’s almost as if the laws of physics we rely on are being gently bent.”

Ten days ago, new imagery from ground-based observatories and solar-monitoring satellites revealed a strange, glowing plasma stream trailing toward the Sun—an impossible direction for a normal comet under standard solar physics.

The images quickly spread online, sparking confusion, speculation, and even wild conspiracy theories.

Some amateur astronomers claimed the object was “artificial,” while others speculated about it being a fragment of a distant stellar explosion.

Yet verified data collected by NASA’s Solar Dynamics Observatory (SDO) painted a more unsettling, coldly scientific picture: 3I/ATLAS was undergoing a gradual structural transformation, not an explosive breakup.

As the object entered denser regions of solar plasma, subtle but unmistakable changes became apparent.

Features that had appeared coherent just days earlier began to fade and distort.

Unlike typical comet fragmentation, which is often violent and chaotic, 3I/ATLAS seemed to be quietly losing its structure, a slow, almost eerie disintegration.

Observatories around the globe had to coordinate closely, merging data from radio telescopes, optical sensors, and ultraviolet imaging to maintain a precise track of its path.

 

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Even with this intensive monitoring, no sudden course changes or erratic behavior were observed.

The object continued its journey, seemingly obeying solar gravity while quietly breaking down from within.

Experts are now asking fundamental questions about what the Sun is doing to this interstellar visitor.

“If 3I/ATLAS survived millions of years traveling through deep space, withstanding cosmic radiation, collisions, and extreme cold, why is the Sun having such a pronounced effect on it?” said Dr.Hiroshi Tanaka, a solar physicist with Japan’s National Astronomical Observatory.

“The plasma environment near the Sun is extreme, yes, but the object’s slow structural loss is something entirely new.

We are witnessing physics in action that we didn’t even know existed.”

The consequences of this encounter could be far-reaching.

3I/ATLAS is not just another comet—it represents a piece of another star system, carrying clues about the materials and conditions of distant interstellar space.

Understanding its interaction with the Sun could shed light on how extreme plasma environments affect different materials, potentially offering insights for both planetary defense and future interstellar exploration.

On November 27, ten days after its initial approach, images captured by the Daniel K.

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Inouye Solar Telescope in Hawaii revealed a more pronounced glow and what scientists describe as “streaming filaments of plasma material” detaching from the object.

Researchers stress that these are not explosive jets, but rather a gradual unraveling of its surface and internal structure.

“It’s like watching an intricate sculpture dissolve in water,” said Dr.Marquez.

“There’s no violence, only transformation.”

The monitoring of 3I/ATLAS will continue for the foreseeable future, with teams around the globe coordinating to ensure no detail is missed.

Questions abound: How long will it maintain a recognizable shape? Could fragments survive and escape the Sun’s gravitational pull? And most provocatively, is this the first observable example of an interstellar object experiencing a transformation triggered purely by solar plasma?

For now, the cosmic community watches, captivated and cautious.

3I/ATLAS may not simply be disintegrating—it may be transitioning into something entirely new, something the scientific community has never seen before.

One thing is certain: this encounter reminds humanity of the Sun’s immense power and the fragile, fleeting nature of even the most resilient travelers from the depths of space.