The 3I/ATLAS comet was first spotted in July near Jupiter after it entered our solar system from another universe. Here’s ...

While most scientists believe it’s a natural comet, one Harvard astronomer has suggested its unusual features could hint at ...

A coronal mass ejection on another star has been witnessed in its entirety for the first time, revealing that when these ...

Astronomers are studying 3I/ATLAS, a rare interstellar comet nearing the Sun. Despite viral claims calling it an 'alien ...

The comet could be older than our solar system. The comet is also distinct because nickel vapor was detected in the gas ...

The interstellar comet 3I/ATLAS is now reaching its closest point to the sun, or perihelion, on Wednesday, according to NASA.

The comet – named 3I/ ATLAS – was discovered this summer and led to excitement because it appears to be an interstellar comet ...

The interstellar object 3I/ATLAS has astonished astronomers by turning distinctly blue and rapidly brightening as it neared ...

Keck II telescope observations of interstellar object 3I/ATLAS found "evidence for a puzzling anti-tail extension" pointing ...

Interstellar comet 3I/ATLAS reaches its closest approach to the Sun in a high-stakes “acid test” moment. Will it survive or ...

Astronomers found an interstellar "tunnel" - a cosmic channel that connects our solar system to distant stars, according to a ...