What is another word for redshift?
Pronunciation: [ɹˈɛdʃɪft] (IPA) 
Redshift is a term used to describe the movement of light from distant galaxies towards our own galaxy. There are several synonyms for the word "redshift" that describe this phenomenon. One alternative is "Doppler shift," which refers to the change in wavelength of light caused by the relative motion of the source and the observer. "Cosmological shift" is another synonym, which refers to the change in wavelength of light caused by the expansion of the universe. "Redward shift" is a term that is also used to describe this phenomenon, while "blue shift" is used to describe the opposite effect, in which light from a distant galaxy appears to have a higher frequency than expected.
