Articles on Light

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Applying eye black is an important part of prepping for a game for some players. Maddie Malhotra/Boston Red Sox via Getty Images

Why do baseball players put a black mark under their eyes?

As one piece of more than a century of baseball traditions, eye black is part science experiment, part routine and part uniform.
Eureka, what an idea! TU IS/iStock/Getty Images Plus

Who invented the light bulb?

Thomas Edison is just part of the answer, and the light bulb is just part of what he achieved.
This is a James Webb Space Telescope image of NGC 604, a star-forming region about 2.7 million light-years from Earth. NASA/ESA/CSA/STScI

How can the James Webb Space Telescope see so far?

The James Webb Space Telescope has 2 powerful instruments that see light the human eye can’t.
Plants use light to make energy – and a team of scientists is using the same principle to power chemical reactions. fhm/Moment via Getty Images

Light‑powered reactions could make the chemical manufacturing industry more energy‑efficient

Chemical manufacturing is an energy-intensive industry. A team of chemists is designing a technique that could power the necessary reactions with sunlight or LEDs.

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