the new horizons spacecraft is the 5th spacecraft that'll be able to exit the solar sytem. on april 17, 2021, it passed a milestone distance 50 au from the sun. in 2048, it'll be the 5th spacecraft, after voyager 1, voyager 2, pioneer 10 and pioneer 11 to exit the heliosphere and enter interstellar space. in 22nd century, the new horizons spacecraft will overtake pioneer 10 and pioneer 11 to become the 3rd farthest spacecraft from earth, but will never overtake voyager 1 or voyager 2 as the farthest spacecraft from earth.