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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.
First Air Date : Jan 15, 2015
Last Air date : Dec 24, 2015
Episode : 46 Episode
Season : 1 Season
Runtime: 12:14 minutes
Studio: YouTube
Country:
Cast: Phil Plait
Crew: Phil Plait (Writer)
