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Retrospections Lecture Michael Brown: The Solar System and the Distant Dwarfs
 
Michael Brown: The Solar System and the Distant Dwarfs Back
 
Questioning Dwarfs
Topic: Outer Solar System
03/08/07
In the final part of this five-part lecture given at NASA´s Jet Propulsion Laboratory, Michael Brown answers questions from the audience. Questions include "Why did the name of Xena get changed to Eris?" and "Could there be another undiscovered planet in our solar system?"

Studying Dwarf Planets
Topic: Outer Solar System
03/05/07
In this lecture, Michael Brown talks about Eris, the dwarf planet he discovered, and discusses other intriguing findings in the farthest reaches of our solar system.

The Discovery of Eris
Topic: Outer Solar System
03/01/07
In this lecture, Michael Brown talks about his discovery of the dwarf planet, Eris. He also explains how scientists take a tiny point of light in the night sky and figure out how big it really is.

Hunting Distant Dwarfs
Topic: Outer Solar System
02/26/07
In this lecture, Michael Brown talks about the discovery of Pluto in 1930, and explains how scientists today find other distant objects in the Kuiper Belt.

Defining Planets
Topic: Outer Solar System
02/22/07
In this lecture, Michael Brown discusses the controversy over Pluto's demotion to a "dwarf planet" and what that means for our scientific understanding of the solar system.
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