The redshift in atomic spectra of distance cosmic objects is a source of evidence for the [Big Bang Theory].<ref>Edwin Hubble (1929). [http://www.pnas.org/cgi/reprint/15/3/168/ "A relation between distance and radial velocity among extra-galactic nebulae"]. Proceedings of the National Academy of Sciences 15: 168–173.</ref> The redshift, the expanded wavelength of light due to the Doppler Effect of faraway objects, suggests that these objects are moving away from earth. This is a phenomenon predicted by the Big Bang Theory.
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The redshift in atomic spectra of distance cosmic objects is a source of evidence for the [[Big Bang Theory]].<ref>Edwin Hubble (1929). [http://www.pnas.org/cgi/reprint/15/3/168/ "A relation between distance and radial velocity among extra-galactic nebulae"]. Proceedings of the National Academy of Sciences 15: 168–173.</ref> The redshift, the expanded wavelength of light due to the Doppler Effect of faraway objects, suggests that these objects are moving away from earth. This is a phenomenon predicted by the Big Bang Theory.