Comet 3I/ATLAS arrived from beyond the Solar System carrying a chemical story unlike anything astronomers had measured before ...

In the latest research, telescope observations of 3I/ATLAS examine its chemical structure and suggest that it took shape in a ...

Based on the composition of gases spewed by the icy space rock, researchers estimate that our guest might be up to 12 billion years old—about three times the age of the solar system ...

The pre-perihelion and post-perihelion observations of the interstellar interloper by Earth-based observatories and ...

While 3I/ATLAS is definitely a comet, its composition and age have remained unclear. Now, astronomers have solved these ...

Researchers say 3I/ATLAS could be 12 billion years old and has a composition unlike anything in our solar system.

Strange interstellar comet speculated to be alien spacecraft is older than Solar System - Scientists say comet represents ...

The interstellar object 3I/ATLAS has sparked online speculation about alien technology after viral TikTok videos claimed unusual behaviour. Astronomers attribute its brightening to natural processes.

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Harvard University’s Avi Loeb joins “Elizabeth Vargas Reports” to discuss the latest data about 3I/ATLAS, the interstellar comet that recently passed through our galaxy. He says methane signatures ...

A mysterious comet from beyond our solar system is giving astronomers a rare glimpse into alien worlds — and it may have formed in a place far colder and stranger than anything around our Sun. The ...

Copyright 2026 The Associated Press. All Rights Reserved. Copyright 2026 The Associated Press. All Rights Reserved. This image provided by NASA shows the interstellar ...