Astronomer Neil deGrasse Tyson famously insists that Pluto should not be considered a planet – and Stephen Colbert, former host of “The Colbert Report,” put that conviction to the test in a recent interview with the famed astronomer.

Images of Pluto recently surfaced thanks to NASA’s New Horizons spaceship. “Jupiter is 11 times wider than Earth and Earth is five times wider than Pluto, so if we were Jovians, Earth would be a dwarf planet too”.

“Already scientists have learned that Pluto is 20 to 30 kilometers larger than previously thought”, Colbert read, prompting laughter from Tyson.

Astrophysicist Neil deGrasse Tyson has been getting a lot of hate lately.

The Late Show with Stephen Colbert premieres September 8.

Pluto was downgraded from a planet to a dwarf planet in 2006, and Tyson has often been credited with playing a central role in its demotion. Broadcasting from “Late Show Mission Control”, Colbert held up new pictures of Pluto.

Great – we’re living on a dwarf planet.

And after discussing the excitement factor, Tyson admits he only feels “some love” for Pluto, even going so far as refusing to call it a (dwarf) planet. If Neptune was a Chevy Impala parked at the curb, in Tyson’s example, Pluto would be a Matchbox auto.