New Horizons (2006)

Launched in January 2006, New Horizons became the first spacecraft to fly past Pluto on 14 July 2015, revealing a world of unexpected geological complexity: nitrogen ice mountains, a heart-shaped frozen plain (Tombaugh Regio), and a thin atmosphere. New Horizons reached Pluto travelling at 58,536 km/h — the fastest spacecraft ever launched — covering the 4.8 billion km journey in 9.5 years. In 2019 it flew past Arrokoth, the most distant object ever visited by a spacecraft.