222: Measuring the emptiness of space with Dr. Becker cover art

222: Measuring the emptiness of space with Dr. Becker

222: Measuring the emptiness of space with Dr. Becker

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Dr Tracy Becker tells us about solar system science using ultraviolet light. She explains how the color of a planet's northern lights depends on the planet's atmosphere. She also describes how scientists repurposed the New Horizons spacecraft to measure how empty space is.

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