The interstellar object 3I/ATLAS has sparked debate among astronomers since its discovery, and some are exploring whether it ...

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 ...

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

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

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

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

New Hubble Telescope imagery of the interstellar interloper comet 3I/ATLAS reveals a dusty coma and the beginning of a tail.

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

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

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

Given 3I/ATLAS' highly eccentric orbit, this will be its one and only visit to our solar system, as its trajectory does not loop back around the sun. That's why astronomers around the world are using ...