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How does a red shift differ from a blue shift?

In: Ford Aerostar, Chevy Tahoe, Physics, Cosmology [Edit categories]

Answer:

A red shift tell us that a object is moving away, while a blue shift tells us an object is moving toward us.
A red shift has a shorter wave length then a blue shift as the red shift is from the red part of the electromagnetic spectrum and vice versa for blue. (blue shift is from the blue (violet) part of the electromagnetic spectrum)

First answer by Iluvcake94. Last edit by Ntasjames. Contributor trust: 0 [recommend contributor ]. Question popularity: 1 [recommend question].

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