#astronomy #C2019Y4 #C2019Y4ATLAS An article published in the "Astronomical Journal" reports the results of a study on #comet C/2019 Y4 (ATLAS) whose conclusion is that it's a fragment of a larger comet whose passage could have been seen on Earth about 5,000 years ago.
https://english.tachyonbeam.com/2021/08/22/comet-c-2019-y4-atlas-could-be-a-piece-of-a-larger-object-that-passed-flew-by-the-sun-5000-years-ago/