Researchers rarely get a glimpse of an interstellar object up close like 3I-ATLAS, so they have jumped on the opportunity to learn about its composition, which can reveal how planet systems are made.

A new image shows the growing tail of a comet from another star system streaking across our solar system. The image of comet 3I/ATLAS was captured on Aug. 27 using one of the telescopes at the International Gemini Observatory in Chile during a public ...

A comet from another star system will swing by Mars on Friday as a fleet of spacecraft trains its sights on the interstellar visitor. The comet known as 3I/Atlas will hurtle within 18 million miles (29 million kilometers) of the red planet, its closest ...

The newest comet to create a buzz among sky watchers was spotted recently, and it will be coming closer to Earth in October - possibly giving us a better look at this once-in-a-lifetime visitor from the outer reaches of our solar system. The comet’s ...

A European Space Agency spacecraft orbiting Mars caught a glimpse of interstellar comet 3I/ATLAS last week. - ESA / D. Ducros illustration As a visitor from another solar system made its closest approach to Mars on Friday, two spacecraft in orbit around ...