Leaked images hint at a dusty spacecraft; Avi Loeb fuels speculation, but NASA dismisses alien claims. Comet's brightening, ...

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A famous comet visiting from outside our solar system known as 3I/ATLAS is blazing through our cosmic neighborhood, leaving a striking trail in its wake. A ground telescope in Chile recently glimpsed ...

A new image shows the growing tail of a comet from another star system streaking across our solar system. The image of comet 3I/ATLAS was captured on Aug. 27 using one of the telescopes at the ...

Manhattan-sized comet 3I/ATLAS — which scientists suspect could have extraterrestrial origins — will reach its closest ...

Scientists have detected water vapor components in the interstellar object 3I/ATLAS, a significant discovery for ...

The brief, bright appearance of Comet C/2025 A6 (Lemmon) is rapidly drawing to a close, giving stargazers a final, narrow ...

As evidence continues to mount that the mysterious object with interstellar origins currently speeding toward the inner solar system at a breakneck speed is a comet, not everybody’s convinced quite ...

Tonight, skywatchers can witness Comet Lemmon (C/2025 A6), a rare visitor visible in the northwestern sky after sunset. This ...

Comet 3I/ATLAS is just the third observed interstellar object ever witnessed in Earth's solar system. The Gemini South telescope in Chile is the latest observatory to get a glimpse of the object as it ...