Recent observations have revealed carbon monoxide venting from the largest comet ever seen, providing clues about its origins ...

It poses no threat to Earth, but this comet, called C/2014 UN271 (Bernardinelli-Bernstein), has enraptured astronomers ever ...

Thought to be a rare long-period comet that swings into the inner Solar System from the distant Oort Cloud, C/2014 UN271 (Bernardinelli-Bernstein) is an incredible find.

The mega-comet first spotted in 2021 is the largest ever seen according to observations by scientists using the Hubble Space Telescope. Newsletters Games Share a News Tip. Featured.

Comet 2014 UN271 was observed during a mission called the Dark Energy Survey back in 2014, ... This discovery could be one for the record books, leading some to call it a "mega comet." ...

The claim: A 62-mile-wide mega comet has entered the solar system. Expect some brilliant lights in the night sky this summer: The Delta Aquariid meteor shower, which started this month, will be ...

The "mega-comet's" orbit has been updated a few times, but is extremely long – hundreds of billions of kilometers from the sun – and takes approximately 600,000 years.

Comet C/2017 K2 (PANSTARRS), called K2, will swing by our planet on Wednesday (July 13) nearly twice as far away from Earth as our planet is from the sun.But the comet, which may be much as 100 ...

A rare double feature over the Philadelphia region as Comet Tsuchinshan-ATLAS dazzles in the western sky and the Hunter's Moon supermoon rises in the east. Here's your viewing guide.

Comet A3, also known as Tsuchinshan-ATLAS, has come to be known as the "comet of the century" by excited astronomers, such is the anticipation about how bright and visible it might be.

This discovery could be one for the record books, leading some to call it a "mega comet." It's estimated to be between 60 and 230 miles wide, which could make it the largest comet ever discovered ...