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  2. C/2014 UN271 (Bernardinelli–Bernstein) - Wikipedia

    en.wikipedia.org/wiki/C/2014_UN271_(Bernardinelli...

    Even at its minimum estimated diameter, C/2014 UN 271 is the largest Oort cloud comet discovered, being more than 50 times larger than a typical comet which is less than 2 km (1.2 mi) in diameter. The previous largest known long-period comet was C/2002 VQ 94 (LINEAR) with a diameter of 96 km (60 mi), [ 35 ] followed by Comet Hale–Bopp at 74 ...

  3. 4 billion-year-old comet, largest ever seen, set to pass ...

    www.aol.com/news/largest-comet-ever-seen...

    A huge comet with a solid center more than twice the width of Rhode Island is on an orbital path that will swing it inside our cosmic neighborhood, astronomers 4 billion-year-old comet, largest ...

  4. Fascinating recent discoveries about comets and meteors in ...

    www.aol.com/fascinating-recent-discoveries...

    As space objects go, comets and meteors are not very big. While a planet like Earth is about 8,000 miles in diameter and a star like our Sun is about 865,000 miles across, the largest asteroid ...

  5. NASA spots ‘record-breaking’ comet hurtling toward ... - AOL

    www.aol.com/nasa-spots-record-breaking-comet...

    The space agency said it’s the biggest comet nucleus ever recorded with an estimated diameter of 80 miles and overall bigger than the state of Rhode Island.

  6. C/2023 A3 (Tsuchinshan–ATLAS) - Wikipedia

    en.wikipedia.org/wiki/C/2023_A3_(Tsuchinshan...

    The systematic search performed by the Asteroid Terrestrial-impact Last Alert System detected an asteroidal object with an estimated magnitude of 18.1 in images taken on 22 February 2023 using the 0.5 m f/2 Schmidt reflector at the Sutherland Observatory in South Africa, when the comet was about 7.3 AU (1.09 billion km; 680 million mi) from the ...

  7. Comet Hale–Bopp - Wikipedia

    en.wikipedia.org/wiki/Comet_Hale–Bopp

    Herschel Space Observatory images taken in 2010 suggest comet Hale–Bopp is covered in a fresh frost layer. [33] Hale–Bopp was again detected in December 2010 when it was 30.7 au away from the Sun, [ 34 ] and in 2012, at 33.2 au from the Sun. [ 35 ] The James Webb Space Telescope observed Hale–Bopp in 2022, when it was 46.2 au from the Sun ...

  8. Photos show once-in-a-lifetime comet over Ohio. There's still ...

    www.aol.com/photos-show-once-lifetime-comet...

    A rare comet is still glowing over Ohio. Here's how to see it before it's gone, and won't return for 80,000 years. ... part of USA TODAY Network. ... Social media users share images of Comet C ...

  9. Great comet - Wikipedia

    en.wikipedia.org/wiki/Great_comet

    Comet McNaught as the Great Comet of 2007. A great comet is a comet that becomes exceptionally bright. There is no official definition; often the term is attached to comets such as Halley's Comet, which during certain appearances are bright enough to be noticed by casual observers who are not looking for them, and become well known outside the astronomical community.