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 ...

The ATLAS (short for Asteroid Terrestrial-impact Last Alert System) is a NASA-funded program developed by the University of ...

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 ...

For only the third time in recorded history, an interstellar object has crossed into our solar system, creating quite the ...

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.

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

AN INTERSTELLAR space rock zooming through our solar system may be the oldest comet ever seen by humans, according to ...

Astronomers have discovered yet another alien visitor to the Solar System.

COLUMBUS, Ohio — In a cosmic first for this decade, astronomers have identified a mysterious comet from another galaxy — ...

As 3I/ATLAS approaches the sun, astronomers expect its frozen ices to sublimate, releasing gas and forming a glowing coma and ...