Overview
When the American Museum of Natural History's Hayden Planetarium stopped calling Pluto a planet, director Neil deGrasse Tyson found himself at the center of a firestorm led by angry Pluto-loving elementary school students. What is it about Pluto—a cold, distant, icy rock—that captures so many hearts? Four years after the IAU (International Astronomical Union) officially reclassified the ninth planet as a plutoid, NOVA travels cross-country with Tyson to find out.
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37 - 1Darwin's Darkest Hour October 06, 2009 -
37 - 2Hubble's Amazing Rescue October 13, 2009 -
37 - 3Lizard Kings October 20, 2009 -
37 - 4Becoming Human: First Steps November 03, 2009 -
37 - 5Becoming Human: Birth of Humanity November 10, 2009 -
37 - 6Becoming Human: Last Human Standing November 17, 2009 -
37 - 7What Are Dreams? November 24, 2009 -
37 - 8What Darwin Never Knew December 29, 2009 -
37 - 9Killer Subs in Pearl Harbor January 05, 2010 -
37 - 10Building Pharaoh's Ship January 12, 2010 -
37 - 11Riddles of the Sphinx January 19, 2010 -
37 - 12Ghosts of Machu Picchu February 02, 2010 -
37 - 13Extreme Cave Diving February 09, 2010 -
37 - 14The Pluto Files March 02, 2010 -
37 - 15Hunting the Edge of Space: The Mystery of the Milky Way April 06, 2010 -
37 - 16Hunting the Edge of Space: The Ever Expanding Universe April 13, 2010 -
37 - 17Mind Over Money April 27, 2010 -
37 - 18Mt. St. Helens Back From the Dead May 04, 2010
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