A massive icy comet emanating from the trans-Plutonian depths of our solar system is on a course to travel closer to earth than any comet of similar size – at least, so far as scientists have been able to tell.
The comet, known as C/2014 UN271 (Bernardinelli-Bernstein), has a frozen nucleus that measures 80 miles across and is 50x bigger than the core of most comets that travel toward the inner area of our solar system.
