Gravity, Dark Energy, Alpha, & General Relativity.

..." It appears that as gravity lost its grip on the universe to dark energy 
and the universe has expanded, the bonds between electrons and protons have 
gotten stronger. "...

..." What's more, the pair's findings may have profound implications for 
uncovering violations of the equivalence principle -- a cornerstone of 
Einstein's general theory of relativity. "
http://www.astronomy.com/Content/Dynamic/Articles/000/000/001/582xakvj.asp

[Mod. note: Windows character set nastiness removed -- mjh]