This week in science: a comet, plastic-eating bugs, and how altitude changes smell

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This week in science: a comet, plastic-eating bugs, and how altitude changes smell Emily Kwong and Regina Barber of NPR's Short Wave talk about a comet visiting from interstellar space, caterpillars that eat and break down plastic, and how animals' sense of smell varies by altitude.

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This week in science: a comet, plastic-eating bugs, and how altitude changes smell

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Emily Kwong and Regina Barber of NPR's Short Wave talk about a comet visiting from interstellar space, caterpillars that eat and break down plastic, and how animals' sense of smell varies by altitude.

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