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== Support for the Big Bang theory ==

== Support for the Big Bang theory ==

The redshift in atomic spectra of distance cosmic objects is claimed as 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, suggests that these objects are moving away from Earth due to the expansion of the universe. This is a phenomenon predicted by the Big Bang theory.  However, creationist cosmologies also predict this expansion, so the evidence cannot be used in support of the Big Bang theory over creationist theories.

The Hubble redshift in atomic spectra of distance cosmic objects, discovered by Edwin Hubble around 1929, is claimed as 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, suggests that these objects are moving away from Earth due to the expansion of the universe. It also suggests either that the universe is undergoing accelerating expansion for an unknown reason, or that there exists [[Hubble time dilation]] causing such an effect in stationary [[Einstein's universe]]. The latter effect is expected by observational predictions of [[Einsteinian gravitation]]. It also complies with the [[perfect cosmological principle]].

This is a phenomenon predicted by the Big Bang theory.  However, creationist cosmologies also predict this expansion, so the evidence cannot be used in support of the Big Bang theory over creationist theories.

==References==

==References==

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[[Category:Astronomy]]

[[Category:Astronomy]]