Categories
Cosmology Creation/evolution Physics

Redshifts and the Universe

I outline what redshifts are and how they are used as a distance measure in the Universe. The usual practice is to equate redshift to expansion of space then in an expanding universe the greater the redshift the greater the distance in the Universe. That is known as the Hubble law. But can this be justified from laboratory experiments? How sure are we that the universe began in a big bang? Does it all come down to our interpretation of what redshifts are?

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By John Gideon Hartnett

Dr John G. Hartnett is an Australian physicist and cosmologist, and a Christian with a biblical creationist worldview. He received a B.Sc. (Hons) and Ph.D. (with distinction) in Physics from The University of Western Australia, W.A., Australia. He was an Australian Research Council (ARC) Discovery Outstanding Researcher Award (DORA) fellow at the University of Adelaide, with rank of Associate Professor. Now he is retired. He has published more than 200 papers in scientific journals, book chapters and conference proceedings.