Actor:
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1. Nova (1974), series...Self - Harvard-Smithsonian Center for Astrophysics
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2. How the Universe Works (2010), series...Self - Astrophysicist
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3. Strip the Cosmos (2014), series...Self - Astrophysicist
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4. Space's Deepest Secrets (2016), series...Self - Astrophysicist
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5. Universe (2021), series...Self - Harvard-Smithsonian Center for Astrophysics