RIP Comet Leonard: Brightest comet to whiz past Earth in 2021 is now a blur of dust. - Livescience.com

Though the comet is gone, it will be fondly remembered.

Comet Leonard, shown here on Dec. 4, 2021, was the brightest comet to whiz past Earth that year. (Image credit: Franco Tognarini/Getty Images) The brightest comet to whiz past Earth in 2021 has like… [+3219 chars]

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