Is demoted planet Pluto making a comeback?

Updated 5:01 PM EST, Fri January 2, 2015

Story highlights

Pluto was demoted to dwarf planet in 2006

Harvard held a forum to debate Pluto's status

The public says Pluto should be reinstated

(CNN) —  

Poor Pluto. Is it or isn’t it a planet?

Ever since astronomer Clyde Tombaugh at the Lowell Observatory in Flagstaff, Arizona, discovered it on February 18, 1930, we’ve believed that we live in a solar system with nine planets.

Then, along came the International Astronomical Union, the group that gets to name planetary bodies. In 2006, it came up with some rules for what is and is not a planet. The group decided Pluto didn’t make the grade.

It was demoted to a dwarf planet, leaving our solar system with just eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.