New model may explain 'cosmic glitch,' where gravity weakens at edge of universe, scientists say

A new model could explain the "cosmic glitch" at the edge of the expanding universe, where gravity weakens by about a per cent, according to new research. The widely accepted model of gravity comes from Einstein's theory of general relativity, which has been confirmed through multiple tests and experiments. While the theory has been essential for "theorising the Big Bang to photographing black holes," scientists encounter inconsistencies in its predictions when trying to understand gravity on a cosmic scale, according to Robin Wen, a mathematical physics graduate at the University of Waterloo, Canada.