Pluto: a small world with big surprises
Pluto is a dwarf planet beyond Neptune. It has icy plains, mountains, and several moons.
Being a dwarf planet does not make it unimportant. Exploring small worlds helps us understand how the Solar System formed.
Wonder about this
When Pluto became a dwarf planet, did its physical world change?
A science clue
No. Scientists changed its classification, not the world itself.