bvbarmyCrew01 bvbarmyCrew01

12-05-2017
Biology

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an increase in the wavelength of light as a galaxy moves away from earth called a

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imcatchingfire1 imcatchingfire1

12-05-2017

Redshift and blueshift describe how light changes as objects in space (such as stars or galaxies) move closer or farther away from us. The concept is key to charting the universe's expansion.

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