Body
Pluto
The dwarf planet that turned out to have mountains of water ice and a heart-shaped glacier.
The dwarf planet that started as the ninth planet and ended as the king of the Kuiper Belt. New Horizons revealed a heart-shaped nitrogen glacier and mountains of water ice.
Visited by
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New Horizons
Nine years to Pluto for one unrepeatable flyby.
year: 2015 · encounter: flyby