However, new research has shown this potentially "water ice-rich" visitor could be even more extraordinary than initially believed. 3I/ATLAS could be around 3 billion years older than our 4.5 billion-year-old solar system and thus any comet ever before observed.

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar system by more than 3 billion years, researchers say.

AN INTERSTELLAR space rock zooming through our solar system may be the oldest comet ever seen by humans, according to researchers. The mysterious cosmic object was discovered last week, and is

Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion years old, almost twice the age of our sun

The object seems to be travelling on a steep path - suggesting it came from the Milky Way's "thick disk", an area of ancient stars that orbits above and below the thin plane where most stars reside.

On July 1, scientists discovered a mysterious object hurtling through our solar system.  Nicknamed 3I/ATLAS, astronomers say it could be the oldest comet ever and perhaps even older than our solar sys

A newly discovered comet, 3I/ATLAS, may be the most ancient visitor ever detected, potentially older than our solar system itself. Unlike previous interstellar objects, this ice-rich comet seems to originate from the thick disk of the Milky Way,

After running a new kind of computer simulation, scientists believe the comet originated from a rarely seen corner of the galaxy, far beyond the birthplace of the sun. And because