Twenty years after Pluto lost its planetary status, astronomers are once again debating whether the distant icy world deserves to be called a planet. The controversy dates back to August 24, 2006, when the International Astronomical Union (IAU) voted to change the official definition of a planet. The decision reduced the number of recognized planets… Continue reading Pluto Planet Debate Returns 20 Years After Demotion
Pluto Planet Debate Returns 20 Years After Demotion