24 August 2006: There’s one less planet in the sky.
Why Is Pluto Not A Planet Anymore
Why some scientists think Pluto should be a planet again - Vox
Why Pluto is no longer a planet (or is it?)
Culture Re-View: Why is Pluto not a planet anymore? – 9News Nigeria
Culture Re-View: Why is Pluto not a planet anymore?
It's Official: Pluto Is Even Weirder Than We Thought
Scientists decide Pluto's no longer a planet
Beyond Pluto: the hunt for our solar system's new ninth planet
Following New Horizons' Long Mission, Pluto Gets a Forever Stamp