It's probably a comet, but it might be some sort of ancient alien spacecraft or probe. What's for sure is that the mystery surrounding an object known as 3I/ATLAS is becoming both more and ...

An interstellar visitor to our solar system known as 3I/ATLAS has captivated the public for months, and it's not hard to see why. But for scientists around the world, the discovery that 3I/ATLAS is ...

Astronomers found that interstellar object 3I/ATLAS shows an "extreme abundance ratio" of nickel and iron in its gas plume. Astronomers are still poring over data to get a better sense of 3I/ATLAS, ...

A massive comet traveling through the solar system is much larger than previously thought and could be a remnant of alien technology, a scientist claims in a new report. 3I/ATLAS was first identified ...

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NASA has confirmed the discovery of Comet 3I Atlas, the third known interstellar object to pass through our solar system after ʻOumuamua and Borisov. Detected in July 2025 by the ATLAS telescope in ...

As interstellar object 3I/ATLAS approaches its closest point to the Sun next month, the mysterious visitor continues to fascinate astronomers. The object, which is broadly believed to be a comet that ...

Interstellar object 3I/ATLAS — which is zooming through our inner solar system — appears to be emitting its own light, according to Harvard astrophysicist Avi Loeb. The observation by Loeb, if ...

Oumuamua, the first known interstellar object, passed through our solar system in 2017, sparking debates and curiosity among scientists. Its unusual shape and behavior have made it a subject of ...