STILL SEEKING NEW HORIZONS: A FIRST LOOK AT WORLDS BEYOND PLUTO

摘要

to. After its blistering encounter with the last of the classical planets, New Horizons continued on its outbound journey. It would be some time before the mission team decided on their next objective, but on the very first day of 2019, the probe passed its next objective—a tiny planetoid called 2014 MU69, more popularly referred to as Ultima Thule.