What: Ultraviolet observations of the interstellar comet 3I/ATLAS captured by NASA’s Europa Clipper spacecraft while the ...

3I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar ...

Interstellar comet 3I/ATLAS will make its closest approach to Earth on Friday. New X-ray images could shed light on its composition.

The interstellar comet 3I/ATLAS could be covered in erupting "ice volcanoes," new observations suggest. Researchers found evidence that as the comet approached the sun, a series of cryovolcanoes ...

I/ATLAS will pass Earth safely tonight, providing scientists with a unique opportunity to study material from outside our solar system.

We've watched it speed through the solar system using the most powerful telescopes in human history. We've studied its light with probes whipping around the sun and robots marooned on Mars. Countless ...