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From: Sam Wormley on 4 May 2010 15:37
On 5/4/10 2:05 PM, Michael Helland wrote:
> If the Universe is expanding, are galaxies farther away from us today
> than they were 10 years ago?

Here's the expansion rate --- 71 � 4 km/s/Mpc

>
> In hearing about the predictions made by the big bang (redshift, CMB,
> nucleosynthesis, surface brightness test, time dilation in light
> curves) it seems like verifying that the galaxies are actually
> receding (rather than only given the appearance of doing so) is
> somewhat more definitive.

Redshift of the specta is quite accurate.

No Center
http://www.astro.ucla.edu/~wright/nocenter.html
http://www.astro.ucla.edu/~wright/infpoint.html

Also see Ned Wright's Cosmology Tutorial
http://www.astro.ucla.edu/~wright/cosmolog.htm
http://www.astro.ucla.edu/~wright/cosmology_faq.html
http://www.astro.ucla.edu/~wright/CosmoCalc.html

WMAP: Foundations of the Big Bang theory
http://map.gsfc.nasa.gov/m_uni.html

WMAP: Tests of Big Bang Cosmology
http://map.gsfc.nasa.gov/m_uni/uni_101bbtest.html
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