The intrepid spacecraft has traveled 13 years and 4 billion miles to glimpse Ultima Thule, a cold, dark world at the fringes of our solar system.
NASA's New Horizons Probe Prepares To Make History—Again
The intrepid spacecraft has traveled 13 years and 4 billion miles to glimpse Ultima Thule, a cold, dark world at the fringes of our solar system.
