character: Enrico Fermi
topic: Fermi Paradox
grade: 11
subject: Physics
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character: Stephen Hawking
topic: Search for Extraterrestrial Intelligence
grade: 11
subject: Physics
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character: Carl Sagan
topic: Cosmos and the Drake Equation
grade: 11
subject: Physics
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character: Neil deGrasse Tyson
topic: Astrobiology and the Universe
grade: 11
subject: Physics
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