Crash Course Astronomy

Crash Course Astronomy

Light (1x24)


Air date: Jul 09, 2015

In order to understand how we study the universe, we need to talk a little bit about light. Light is a form of energy. Its wavelength tells us its energy and color. Spectroscopy allows us to analyze those colors and determine an object’s temperature, density, spin, motion, and chemical composition.

  • Premiered: Jan 2015
  • Episodes: 46
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