In the past decade, astronomers have witnessed three interstellar objects (ISOs) passing through the solar system. These ...

A controversial new paper questions whether the interstellar object 3I/ATLAS is a potentially dangerous alien probe, similar ...

Interstellar object 3I/ATLAS — which is zooming through our inner solar system — appears to be emitting its own light, ...

A mysterious interstellar comet named 3I/ATLAS is hurtling toward our solar system — and it's unlike anything we've seen ...

Hubble has taken the clearest image to date of the interstellar comet 3I/ATLAS, which is racing through our solar system at ...

Detailed photos from the newly operational Vera C. Rubin Observatory have revealed that the recently discovered interstellar object 3I/ATLAS is roughly 7 miles wide, making it the largest of its kind ...

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

Harvard astronomer Avi Loeb and his colleagues suggest the possibility interstellar space object 3I/ATLAS is generating "its ...

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 ...

Astronomers have spotted only three objects known to have come from outside our solar system. The newest, called 3I/ATLAS, is already raising eyebrows. First seen this summer, it doesn’t quite behave ...