Comet McNaught, the so-called Great Comet of 2007, has been identified as the biggest comet measured to date, according to scientists, based on the comet's overall influence in space.

A comet known as the "Devil Comet," twice the size of Mount Everest, is currently approaching Earth. This comet, scientifically labeled as 12P/Pons-Brooks, is a periodic comet with an orbital ...

NASA and the European Space Agency recently shared remarkable new images of the interstellar comet 3I/ATLAS, which was ...

A volcanic comet the size of a small city exploded as it headed toward the sun, emitting a cloud of ice and gas that looks like a gigantic pair of horns, astronomers said. The comet, called 12P ...

Dubbed C/2017 K2 (PanSTARRS), this collossal comet will make its closest approach to Earth on July 14 and will be close to the Sun on December 19. A massive comet over twice the size of Mount ...

NASA's Hubble Space Telescope has calculated the size of a massive comet nucleus observed last year, and it's the largest ever spotted, measuring 80 miles across —about twice the width of Rhode ...

Comet C/2014 UN271 is twice the size of Rhode Island and the same size as the Death Star, and will swoop by Saturn in 2031.

"The Devil Comet'' -- a rare galactic phenomenon the size of Mount Everest that can only be seen by humans about every 70 years -- may soon be visible with the naked eye as it barrels toward Earth.

The cryovolcanic comet 12P/Pons–Brooks, which will make its closest approach to Earth next year, has re-sprouted its distinctive "horns" after its second major eruption in four months.

A comet twice the size of the one that killed the dinosaurs comes dangerously close to Earth every once in a while. Every year, stargazers get out their telescopes with excitement to watch the Pers… ...

The cryovolcanic comet 12P/Pons–Brooks, which will make its closest approach to Earth next year, has re-sprouted its distinctive "horns" after its second major eruption in four months.

A comet known as the "Devil Comet," twice the size of Mount Everest, is currently approaching Earth. This comet, scientifically labeled as 12P/Pons-Brooks, is a periodic comet with an orbital ...