Planetary Radio • Oct 03, 2018

John Logsdon and the Dawn of the Space Age

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On This Episode

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John M. Logsdon

Board of Directors of The Planetary Society; Professor Emeritus, George Washington University

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Bill Nye

Chief Executive Officer for The Planetary Society

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Bruce Betts

Chief Scientist / LightSail Program Manager for The Planetary Society

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Mat Kaplan

Senior Communications Adviser and former Host of Planetary Radio for The Planetary Society

The Dean of space policy, John Logsdon, returns with stories and a new book of original documents that shaped the US space program from the birth of NASA to SpaceX. Planetary Society CEO Bill Nye reports in from this year’s International Astronautical Congress in German, while Senior Editor Emily Lakdawalla wraps up a working tour of New Zealand. Then join Bruce and Mat for this week’s What’s Up.

NASA's Mercury 7 astronauts
NASA's Mercury 7 astronauts On April 9, 1959, NASA introduced its first astronaut class, the Mercury 7. Front row, left to right: Walter M. Schirra, Jr., Donald K. "Deke" Slayton, John H. Glenn, Jr., and M. Scott Carpenter; back row, Alan B. Shepard, Jr., Virgil I. "Gus" Grissom, and L. Gordon Cooper, Jr.Image: NASA

NO CONTEST THIS WEEK! The space trivia contest will return next time.

This week's question:

NO CONTEST THIS WEEK! The space trivia contest will return next time.

Last week's question:

How many times was the Delta II rocket launched, including successes, failures and partial successes?


The answer will be revealed next week.

Question from the September 19 space trivia contest question:

What is the tallest mountain on Ceres?


Ahuna Mons is the tallest mountain on Ceres, discovered by the Dawn spacecraft.