From lightning to lightning bugs, nature creates its own light in a spectacular variety of ways. Zoey discovers that we humans have also learned to harness nature’s elements to light up our lives.

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The Big Question: “If fireflies glow in the dark, why can’t we?” MY GREAT CHALLENGE: In the dark, challengers have to use black lights to find bioluminescent “fish.” IN THE FIELD: Zoey goes to a bioluminescence lab to understand how creatures glow in the dark. BIG IDEA IN STEM: Living things and the environment create light in a spectacular variety of ways. Even though humans can't produce light like fireflies do, we've learned to harness nature's elements to light up our lives.