Giant Comet

As far as we know, comets typically aren't that huge. Despite its reputation, Halley's Comet is only 9.3 miles across. Then, in the summer of 2021, a comet that was more impressive than any ice ball before it was discovered. The Bernardinelli-Bernstein Comet has a substantial width of 124 kilometers.

If you're perplexed as to why you weren't aware of the celestial object that dwarfs Halley's, it's in large part because it wasn't yet visible in the night sky. The typical individual won't be able to see it from Earth using consumer-grade technology until 2031. Therefore, if it approaches Earth closer than anticipated (which has already occurred, such as in October 2021 with the asteroid UA21), it may shine in the sky more than ten times brighter than any comet in known history.