Princeton scientists say Einstein's theory applies beyond the solar system - Princeton University
"The scientists' analysis of more than 70,000 galaxies demonstrates that the universe -- at least up to a distance of 3.5 billion light years from Earth -- plays by the rules set out by Einstein in his famous theory."
http://www.princeton.edu/main/news/archive/S26/84/06S95/index.xml?section=topstories
Einstein's Theory Applies Beyond The Solar System - redOrbit
http://www.redorbit.com/news/space/1835883/einsteins_theory_applies_beyond_the_solar_system/index.html
[astro-ph/0310571] A Map of the Universe