Ned Wright has a nice tutorial on it taking you step by step through it.

http://www.astro.ucla.edu/~wright/cosmo_01.htm

Starts as a steady state universe then spherical explosion in a static space to finally an expanding universe.

According to it in chapter 2

Quote:

Models that do not predict this relationship between DA and DL, such as the chronometric model or the tired light model, are ruled out by the properties of the CMB.


So probably start with why that observation ruled them out.

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Last edited by Orac; 07/04/11 09:52 AM.
I believe in "Evil, Bad, Ungodly fantasy science and maths", so I am undoubtedly wrong to you.