Leonard David discusses "Mars: Our Future on the Red Planet", the companion book to the six-part National Geographic Channel television series "Mars" executive produced by Brian Grazer and Ron Howard.

More information on Leonard David can be found on his website http://www.leonarddavid.com/.

Leonard David discusses "Mars: Our Future on the Red Planet", the companion book to the six-part National Geographic Channel television series "Mars" executive produced by Brian Grazer and Ron Howard. More information on Leonard David can be found on his website http://www.leonarddavid.com/.

Gloria Minott Presents...Leonard David (Space Journalist)_Episode 182

Join journalist Gloria Minott as she talks with the newsmakers of today and tomorrow.

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Gloria Minott Presents...Leonard David (Space Journalist)_Episode 182

Gloria Minott Presents...Leonard David (Space Journalist)_Episode 182