character: NASA engineer John B. Hightower
topic: Advancements in propulsion systems for deep space missions
grade: 9
subject: Physics
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character: NASA scientist Dr. Ellen Ochoa
topic: Impact of robotics in space exploration
grade: 9
subject: Physics
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character: NASA astronaut Jessica Watkins
topic: Role of astronauts in advancing technology on the International Space Station
grade: 9
subject: Physics
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character: NASA administrator Bill Nelson
topic: Future goals of NASA in space technology and exploration
grade: 9
subject: Physics
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