character: Cosmologist
topic: Redshift and Distance Relationships in Astronomy
grade: 9
subject: Science
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character: Astronomer
topic: Hubble's Law and Its Application in Measuring Distances
grade: 9
subject: Science
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character: Astrophysicist
topic: The Doppler Effect and Its Influence on Observing Cosmic Events
grade: 9
subject: Science
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character: Teacher
topic: Understanding Light Years and Cosmic Distances
grade: 9
subject: Science
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