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- 1George TakeiApril 20, 2015 · 7.5
- 2Christopher NolanApril 27, 2015 · 6.5
- 3Dan SavageMay 4, 2015 · 5.5
- 4Arianna HuffingtonMay 11, 2015
- 5Richard DawkinsMay 18, 2015
- 6Jimmy CarterMay 25, 2015
- 7Chris HadfieldJune 1, 2015
- 8Biz StoneJune 8, 2015
- 9Charles Bolden / NASAJune 15, 2015
- 10Norman LearJune 22, 2015