The interstellar object dubbed 3I/ATLAS has been fascinating astronomers since its discovery in early July. The object, generally believed to be a comet, is screaming through the solar system at ...

Researchers have detected a gamma-ray burst outside of the Milky Way that's unlike any previously observed. There's no ...

It’s a stellar discovery. A Manhattan-sized interstellar comet was spotted blazing through our solar system — marking only the third time a mysterious object from beyond our cosmic neighborhood has ...

A rare visitor from another star system has been spotted. It's the interstellar comet 3I/ATLAS, and it was detected on July 1 by the NASA-funded Asteroid Terrestrial-impact Last Alert System, or ATLAS ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously ...

WARWICK, England — Just 160 light years from Earth, two dead stars are dancing toward destruction. These white dwarfs, the collapsed remains of once-ordinary stars like our Sun, have grown so massive ...

The monstrous 85-mile-wide comet C/2014 UN271 is the second most distant body originating from the Oort Cloud found to be chemically active. Astronomers have discovered that the largest comet from the ...