David Grinspoon
Aktor:
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1. The Universe (2007), seriale...Self - Planetary Science Institute
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2. How the Universe Works (2010), seriale...Self - Astrobiologist
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3. Universi (2015), seriale...Self - Denver Museum of Nature and Science
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4. Planetët (2019), seriale...Self - Planetary Science Institute
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...Self - Astrobiologist