Proof is in the cosmos: Einstein's general theory of relativity confirmed

Albert Einstein wins again. His general theory of relativity has proved accurate in predicting how light travels from some of the most distant galaxy clusters in the universe, according to new measurements.

However, the findings still do not disprove an alternative theory of gravity invented to undo the need for dark energy, which is thought to be causing the accelerated expansion of the universe.

The new findings come from a study of light from hundreds of thousands of distant galaxies. General relativity predicts that the wavelength of this light will be shifted by a small amount due to the galaxies' mass, in an effect called gravitational redshift.

http://www.msnbc.msn.com/id/44705396/ns/technology_and_science-science/t/proof-cosmos-einsteins-general-theory-relativity-confirmed/