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

An aging spacecraft more than a decade into its mission may soon undertake one of the most ambitious maneuvers in modern ...

A Harvard scientist has revealed a 15-point plan to tackle an alien threat following news that an 'object' is heading towards Earth.

This week, astronomers have documented the occurrence of an unprecedented stellar death unlike anything seen before.

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 ...

“They happen to be very close to each other in the sky right now,” he says. “The closest approach was actually this (Tuesday) ...

Scientists have proposed a six-word message to send to the interstellar object shooting through space before it reaches a ...

On August 11, 2025, Harvard astrophysicist Avi Loeb sparked global intrigue by proposing that the interstellar object 3I/ATLAS, discovered on July 1, 2025, by NASA’s ATLAS telescope in Chile, may be ...

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

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

Comet 3I/ATLAS will get as close as 210 million kilometers (130 million miles) from the Sun, far beyond the orbit of Earth, ...