20 years on, downgrading Pluto from planet was right call, says College of Arts and Sciences Dean David Gerdes

It’s Been 20 Years Since Astronomers Decided Pluto Isn’t a Planet

CNET: David Gerdes, dean of the College of Arts and Sciences, said that expanding the definition of a planet to include Pluto would also sweep up other celestial bodies, including asteroids like Ceres, Pallas and Vesta. “Today, we know of over a million asteroids — so many that we call that region the ‘asteroid belt’ — and nobody considers them planets," Gerdes said.