However, new research has shown this potentially "water ice-rich" visitor could be even more extraordinary than initially ...

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar ...

Astronomers have discovered a new interstellar visitor, 3I/ATLAS, which is believed to be the oldest comet ever observed. The comet is estimated to be around 7 billion years old.

A mystery interstellar object spotted last week by astronomers could be the oldest comet ever seen, according to scientists.

The icy traveler, called 3I/ATLAS or Comet ATLAS, was discovered on July 1 by the NASA -funded ATLAS survey telescope in Río Hurtado, Chile. This enormous space snowball came from the direction of the ...