I grew up when Pluto was a planet. But, as you no doubt know, 18 years ago, on August 24, 2006, poor Pluto was downgraded from a regular ol' planet planet to a dwarf planet. KCRA explains that:
the International Astronomical Union voted to strictly define a planet, which ultimately downgraded Pluto from the ninth planet from the sun to a dwarf planet — causing controversy both scientifically and culturally.
The post Celebrate the 18th anniversary of downgrading Pluto to a "dwarf planet" appeared first on Boing Boing.
