What was Bekenstein 's proposal concerning black holes ?
A quantity formula_45 probing General Relativity ( GR ) on large scales ( a hundred billion times the size of the solar system ) for the first time has been measured with data from the Sloan Digital Sky Survey to be formula_46 ( ~ 16 %) consistent with GR , GR plus Lambda CDM and the extended form of GR known as formula_47 theory , but ruling out a particular TeVeS model predicting formula_48 .