Comet spotted by Hubble is largest ever observed

C/2014 UN271 (Bernardinelli-Bernstein) "could be as big as 85 miles across making it the largest comet observed yet, according to NASA Hubble Space Telescope team. Credit: NASA's Goddard Space Flight Center Paul Morris: Lead Producer Music Credits: “Ash Cloud” by Samuel Sim [PRS] via Sound Pocket Music [PRS] and Universal Production Music Additional Credits: Pop Sound Effects by erhnbcc via Motion Array Illustration of comet by NOIRLab/NSF/AURA/J. da Silva (Spaceengine)