Learn how Comet 3I/ATLAS began to emit methane as it approached the sun, releasing compounds contained within its inner ...

An interstellar comet changed its chemistry after passing the Sun, revealing hidden layers and a surprising mix of carbon ...

Interstellar comet 3I/ATLAS is now on its way out of our solar system, never to return. The comet was only the third-ever ...

Interstellar comet 3I/ATLAS showed changing chemistry near the Sun, revealing clues about its internal structure and offering ...

A comet named 3I/ATLAS was first discovered on July 1, 2025, and is located about 420 million miles away from Earth, ...

An interstellar visitor is continuing to surprise scientists as it leaves the Solar System, with new observations revealing ...

The comet has been on our radars since the summer of 2025, when the Asteroid Terrestrial-impact Last Alert System (ATLAS) telescope in Río Hurtado, Chile, spotted it for the first time. It was ...

Observing the interstellar visitor after its closest approach, astronomers found that its composition appears to have changed ...

The interstellar comet 3I/ATLAS changed significantly as it flew by the sun last fall, astronomers have discovered.

Interstellar comet 3I/ATLAS, the third of its kind, is revealing its composition as it heads back into deep space. Scientists ...

"We estimated an outflow from the comet's nucleus of about two tons per second, equivalent to approximately 70 Olympic ...

A comet named 3I/ATLAS was first discovered on July 1, 2025, and is located about 420 million miles away from Earth, ...