An interstellar comet spotted by NASA is headed for our solar system, showing up near Earth later this year, but it's another ...

Confirmed as an alien comet, new observations have given us a much better idea of how large this interstellar object actually ...

The long-serving space telescope saw the third interloper to enter the solar system from beyond its limits late on Monday ...

Comet 3I/ATLAS has been observed by the Hubble Space Telescope, which delivered new insights into this third interstellar ...

Hubble telescope captures third interstellar visitor 3I/ATLAS showing active dust coma racing through solar system.

No one knows where the comet came from. It’s like glimpsing a rifle bullet for a thousandth of a second,” said David Jewitt, ...

Of course, 3I/ATLAS is no ordinary comet. Discovered on July 1, 2025 by the Asteroid Terrestrial-impact Last Alert System ...

U-M astronomers are helping study a fast-moving, ancient, and massive comet that formed beyond our galaxy. A group of ...

Learn about the interstellar comet 3I/ATLAS, a high-velocity visitor from another star system. Learn how NASA is tracking its ...

Hubble also captured a dust plume ejected from the Sun-warmed side of the comet and a hint of a dust tail streaming away from ...

Detailed photos from the newly operational Vera C. Rubin Observatory have revealed that the recently discovered interstellar ...

A likely comet known as 3I/ATLAS made news earlier in July when it was confirmed to have originated outside Earth's solar system, which makes it just one of three known interstellar objects ever ...