Topic

sunlight

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Editorial illustration showing sunlight focused by a magnifying glass onto a tiny bright point on a leaf

LIGHT & HEAT

Why Does a Magnifying Glass Burn Things?

magnifying glasslenses

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Composite image showing all phases of the moon from new to full and back

Space & Astronomy

Why Does the Moon Change Shape?

The moon does not actually change shape. Its phases are caused by the changing angle at which we see its sunlit half as it orbits Earth.

moonlunar phases

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