The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system.

Comet 3I/ATLAS is an interstellar visitor, unlike others in our Solar System. It follows a path that takes it back to space.

A telescope in Chile recently glimpsed 3I/ATLAS' glowing tail, which observations reveal has grown as the interstellar object ...

Gemini South caught Comet 3I/ATLAS “switching on,” as students and astronomers joined to see dust, gas, chemistry from ...

The comet will come closest to Earth on Oct. 20. There's hope that it may become bright enough to glimpse with the naked eye.

That is the question behind recent measurements of comet 3I/ATLAS, only the third confirmed interstellar comet ever found, ...

"We were excited to see the growth of the tail, suggesting a change in the particles from the previous Gemini images." ...

Conducting a flyby mission to an interstellar object visiting our solar system is "feasible and affordable," a new study ...

NASA's James Webb Space Telescope studied interstellar comet 3I/ATLAS. Observations showed high carbon dioxide levels in the ...

October belongs to Comet C/2025 A6 (Lemmon). This comet is expected to brighten dramatically, potentially reaching naked-eye ...

NASA's James Webb Space Telescope has made its first observations of interstellar comet 3I/ATLAS, revealing that the comet ...