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 ...

On July 1, 2025, the Asteroid Terrestrial-impact Last Alert System (ATLAS) survey telescope, located in northern Chile, ...

Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion ...

A mysterious object, first observed hurtling across the solar system on July 1, has now been identified as "very likely to be ...

Scientists now say an interstellar comet discovered earlier this month could be one of the oldest that astronomers have ever ...

British astronomers have discovered a mysterious object from space that is likely the oldest comet ever observed.This comet ...

A rare interstellar comet is flying through our solar system. Here's how—and when—you might be able to see Comet ATLAS from ...

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 ...

Well, it's July 12, which means (a) the Steam Summer Sale is over and (b) it's really hot outside in the northeastern U.S.

A week and a half after its discovery, there are clues about the origin and age of the interstellar comet 3I/ATLAS – and ...

The European Southern Observatory has captured the clearest images yet of the interstellar visitor 3I/ATLAS as it moves ...