Things You Thought You Knew – Is Everything Light?

Things You Thought You Knew – Is Everything Light?

May 12, 2026 · 43 min · Season 17 · Episode 28

About this episode

Neil deGrasse Tyson and Chuck Nice explore the nature of light, including its reflectivity and the effects of light pollution.

How bright is the Earth from the moon? Neil deGrasse Tyson and Chuck Nice have fun with the sun’s reflectivity, discuss light pollution, and explore the electromagnetic light spectrum: how does sunscreen work?

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