 Brumberg was also one of the creators of a unified relativistic theory of the motion of planets, a necessary step for the generation of Russian experiments in space.He received the USSR State Prize for this work.In 1994-1997, Brumberg led a group of the IAU that discovered inaccuracies in the IAU resolutions of 1991, and subsequently recommended more accurate implementations of relativistic report systems that were approved in 1997.