Dear Mr. Tyson, I think Pluto is a planet. Why do you think Pluto is no longer a planet? I do not like your anser!!! Pluto is my faveret planet!!! You are going to have to take all of the books away and change them. Pluto IS a planet!!!!! Your friend, Emerson York To see more hate mail from third graders visit our website: www.pbs.org/nova/pluto/ Watch "The Pluto Files" Tuesday, March 2nd on PBS at 8PM ET/PT (please check local listings).

So then, what is Pluto? Is it a planet? Is it just an ice ball? The debate continues