Why isn’t Pluto a planet anymore? Did Pluto really get fired from the solar system? In this fun, easy-to-understand episode of Explain It Like I’m 5, host Alex breaks down the emotional and scientific rollercoaster behind Pluto’s planetary demotion. Whether you’re a space nerd, a curious kid, or someone still mourning Pluto’s “firing,” this episode explains the history, controversy, and cosmic rules that changed everything.

Learn why Pluto was reclassified as a dwarf planet by the International Astronomical Union (IAU) in 2006, what it really means to be a planet, and how discoveries like Eris and the Kuiper Belt reshaped our view of the solar system.

Alex explores how Pluto’s orbit, size, and neighborhood in space led to its redefinition—and why the debate isn’t over.

Packed with space facts, science history, and a healthy dose of humor, this episode is perfect for fans of astronomy, science education, and anyone wondering why their childhood planet playlist changed.