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When will we know which is bigger, Pluto or Eris?

Emily Lakdawalla • April 30, 2014 • 8

We don't currently know whether Pluto is the biggest thing in the Kuiper belt or not. When will New Horizons give us the answer?

This is the post where you can comment about the IAU planet definition

Emily Lakdawalla • April 30, 2014 • 36

An attempt to corral the discussion of the IAU planet definition in one place on planetary.org, so that we may be free to actually discuss Kuiper belt observations and scientific results on posts elsewhere on this site.

Intro Astronomy 2014. Class 10: Trans Neptunian Objects including Pluto, KBOs, Comets

Bruce Betts • April 18, 2014

Explore the worlds beyond Neptune including Pluto, Kuiper Belt Objects and comets in this video of class 10 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

Intro Astronomy Class 1: Tour of the Solar System

Bruce Betts • February 11, 2014 • 1

Take a tour of the Solar System in the video of class 1 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

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