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Celebrating the Admiral of the Solar System

A scale and rough color comparison of the terrestrial planets, including the Moon (often considered an honorary terrestrial planet).

Air Date: 12/02/2013
Run Time: 29:30

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  • Jim Bell, President of the Board of Directors, The Planetary Society
  • Louis D. Friedman, Board of Directors, The Planetary Society
  • Bill Nye, Chief Executive Officer

Topics: obituary, NASA Mars missions before 1996, personal stories, Chang'E program, past projects, history, Planetary Radio, the Moon, Planetary Society People, Mars, Planetary Society, Bill Nye, Planetary Society History

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The life of explorer and teacher Dr. Bruce Murray was celebrated last November 10th at Caltech.  This week we present a few excerpts from the tributes paid to the former JPL Director and co-founder of the Planetary Society.  Emily Lakdawalla points us to spectacular images and video from the launch of the Chang’e 3 lunar lander by China, and Bruce Betts speaks of the anticlimactic exit of Comet ISON.  Bruce and Mat Kaplan also entertain proposals for putting DAD in space in this week’s space trivia contest.

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Trivia Contest

This week's prize is the new and stylish Planetary Radio t-shirt!

This week's question:
What does ISON, as in Comet ISON, stand for?

To submit your answer:
Complete the contest entry form at or write to us at no later than Monday, December 9, at 2pm Pacific Time.  Be sure to include your name, mailing address and shirt size.

Last week's question:
Approximately how far from Earth is the Orion Nebula?

The answer will be revealed next week.

Question from the week before:
MOM is India's Mars Orbiter Mission. Amuse us: If we launched a mission with the acronym "DAD" what would it stand for?

Listen to the show to hear submissions by listeners.


No trivia contest spoilers please!

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