planet

Kenneth Chang asks New York Times readers how many planets they want in the Solar System.

Preface to The Pluto Files.

Gathered here in one place is a record of Pluto’s rise and fall from planethood, given by way of media accounts, public forums, cartoons, and letters I received from disgruntled school children, their teachers, strongly opinionated adults, and colleagues.

A discussion of black holes with Stephen Colbert.

The story of Pluto's demotion from planethood and how a similar fate was dealt to other small bodies in the Solar System in centuries past.

Stephen challenges the notion of Pluto's planetness.

Stephen cannot comprehend the big bang and instead yields to intelligent design.

The quest to find planets outside our Solar System.

Chapter 13 from the book Universe Down To Earth about planetary motions in the Solar System.