The object, estimated to be the size of a city block, is only the third known interstellar visitor to our solar system since ...

Interstellar comet 3I/ATLAS is losing an insane amount of mass after making its closest pass of the Sun last month, or ...

Newly discovered comet C/2025 V1 (Borisov), which has some minor similarities to 3I/ATLAS, will make its closest approach to ...

Learn what a black hole is, how it forms, and how astronomers detect it. Understand the science behind black holes and their ...

I/ATLAS recently passed its closest point to the sun. Because of its unusual behavior, some scientists are wondering if it's ...

The interstellar comet 3I/ATLAS is not just a visual spectacle but also a scientific treasure. As the third such interstellar ...

Is a sun a star or a planet? While science now agrees the sun is a star, new telescopes may soon challenge how we define ...

We know of three interstellar objects (ISO) that have visited our inner solar system. Oumuamua was the first one, and it came ...

It's almost become expected that many space telescopes and probes can have "extended missions." Both Voyagers are still ...

Harvard physicist Avi Loeb calculates that the probability of the giant interstellar object 3I/ATLAS being a natural comet is ...

The interstellar object 3I/ATLAS continues to baffle astronomers, with experts trying to find out its origin and other ...