Astronomers using the Hubble Space Telescope have observed 3I/ATLAS, only the third known object from outside our Solar ...

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

Harvard scientist Avi Loeb urges global leaders to devise a plan for a potential alien attack, should interstellar object ...

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

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

NASA's Hubble Space Telescope got an up-close look at a headline-grabbing object known as 3I/ATLAS that has wandered into ...

Scientists estimate the object to be more than 12-miles-wide, speeding at 37 miles-per-second, relative to the sun.

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

The long-serving space telescope saw the third interloper to enter the solar system from beyond its limits late on Monday morning (July 21).

Avi Loeb, the Harvard science professor who has raised questions about an interstellar object known as 3I/ATLAS, tells ...

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

Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" alien technology.