Pluto

Pluto, once counted as the ninth planet, takes center stage in this accessible guide for young readers. Robin Birch recounts the story of its discovery, explains the science behind its icy surface, thin atmosphere, and unusual orbit, and explores how the Hubble Space Telescope and the New Horizons flyby have reshaped our understanding. The book also addresses the debate over Pluto's planetary status and the questions that still intrigue scientists.