english: The important thing here to note is that in the meantime, the four and a half billion years, these comets have been sitting on the outside of the solar system, and haven't changed -- deep, frozen versions of our solar system.
non_english: Ovde je važno primetiti da su u međuvremenu, tokom 4,5 milijarde godina, ove komete stajale na spoljnom rubu Sunčevog sistema i nisu se promenile - daleke, smrznute verzije našeg sunčevog sistema.