Comet 3I/ATLAS Discovery

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Interstellar object 'may be oldest comet ever seen'

3I/ATLAS: Interstellar object 'may be oldest comet ever seen'

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar system by more than 3 billion years, researchers say.

Gizmodo · 1h

An Interstellar Comet Is Here, and Its Age Is Mind-Bending

After defending his PhD thesis on modeling interstellar objects on Monday, June 30, Matthew Hopkins intended to take some well-deserved time off. It would appear the universe had other plans for him.

Space.com on MSN · 5h

Astronomers say new interstellar visitor 3I/ATLAS is 'very likely to be the oldest comet we have ever seen'

I/ATLAS isn't just fascinating because it is the third interstellar visitor found in the solar system; new research suggests it's also the oldest comet ever seen, at over 7 billion years old.

5hon MSN

Astronomers think newly discovered comet may be way older than the sun

The icy traveler, called 3I/ATLAS or Comet ATLAS, was discovered on July 1 by the NASA -funded ATLAS survey telescope in Río Hurtado, Chile. This enormous space snowball came from the direction of the ...

What Is an Interstellar Comet? NASA’s Latest Discovery Explained

Discover the rare interstellar comet 3i/Atlas, recently confirmed by NASA in July 2025. Learn what makes interstellar comets ...

Space.com on MSN1d

Why scientists are so excited about the newfound interstellar comet 3I/ATLAS (op-ed)

The scientific and cultural impact of 3I/ATLAS over the coming months and years will serve as an exemplar of what astronomy ...

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