blueshift

noun blue·shift \ ˈblü-ˈshift \

Definition of blueshift

: the displacement of the spectrum of an approaching celestial body toward shorter wavelengths

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blueshifted

adjective

Recent Examples of blueshift from the Web

Astronomers first studied faraway star surfaces by looking at the redshift or blueshift of light coming from the stars, a technique called Doppler imaging that reveals movement on the stars' surfaces.

— jay bennett, Popular Mechanics, "The Most Detailed Image of Another Star Is Also a Preview of Our Sun's Dying Days," 1 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'blueshift.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.