A comet from another star system does not arrive every year. That is part of what made 3I/ATLAS so compelling when it appeared in July 2025.

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an ...

Based on evidence collected by the James Webb Space Telescope, researchers have found that interstellar comet 3I/ATLAS could ...

When interstellar comet 3I/ATLAS was discovered by the ATLAS survey telescope in Chile on July 1, 2025, it quickly attracted ...

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

An interstellar comet known as 3I/ATLAS, which swept past the Sun in 2024, could be a 12‑billion‑year‑old relic from deep ...

SETI Institute's radio scans of interstellar comet 3I/ATLAS found no evidence of alien technology, confirming its natural origins.

Add Yahoo as a preferred source to see more of our stories on Google. While the scientific community has overwhelmingly concluded it’s a comet, researchers wanted to find out for sure whether 3I/ATLAS ...

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

When Comet 3I/ATLAS entered our solar system last year—only the third known interstellar object to do so—astronomers took notice. And so did scientists involved in the search for extraterrestrial ...

Harvard's Avi Loeb suggests interstellar object 3I/ATLAS might have scattered life-building materials, reviving panspermia debates. His hypothesis remains speculative, lacking concrete evidence of ...

Scientists have released a new image of the space rock traveling through our solar system (Image: Scientists have released a new image of the space rock traveling through our solar system) Space ...