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Message: <blockquote data-quote="tharinda07" data-source="post: 3563238" data-attributes="member: 21844">Observational evidence The earliest and most direct kinds of observational evidence are the <a href="http://en.wikipedia.org/wiki/Hubble%27s_law" target="_blank">Hubble-type expansion</a> seen in the <a href="http://en.wikipedia.org/wiki/Redshift" target="_blank">redshifts</a> of galaxies, the detailed measurements of the cosmic microwave background, and the abundance of light elements . These are sometimes called the three pillars of the big bang theory. Many other lines of evidence now support the picture, notably various properties of the <a href="http://en.wikipedia.org/wiki/Large-scale_structure_of_the_cosmos" target="_blank">large-scale structure of the cosmos</a><a href="http://en.wikipedia.org/wiki/Big_Bang#cite_note-35" target="_blank">http://en.wikipedia.org/wiki/Big_Bang#cite_note-35</a> which are predicted to occur due to gravitational growth of structure in the standard Big Bang theory. </blockquote>

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