Pluto

The dwarf planet was reclassified once before in 2006.
The campaign also wants the moon to be categorized as a type of planet.
The ocean is likely a slushy one, hiding beneath Pluto's heart-shaped central plain.
From its giant icy heart to its mountain ranges, there’s a lot to (virtually) explore on the dwarf planet.
Over time, the heart might actually have a "beat."
Now all we need is a spaceship and some skis.
Take a closer look at the planet's impressive landscape.
The hills of ice appear to be drifting in a sea of frozen nitrogen.