A LOOK at Outbursts of Comet C/2014 UN_{271} (Bernardinelli-Bernstein) Near 20 au

Cometary activity may be driven by ices with very low sublimation temperatures, such as carbon monoxide ice, which can sublimate at distances well beyond 20 au. This point is emphasized by the discovery of Oort cloud comet C/2014 UN_{271} (Bernardinelli-Bernstein), and its observed activity out to \sim26 au. Through observations... Show more