Calculations in a new study by researchers at the University of Edinburgh in the UK could help to explain whether dark energy - as required by Einsteins theory of general relativity - or a revised theory of gravity are responsible. Einsteins theory, which describes gravity as distortions of space and time, included a mathematical element known as a Cosmological Constant. Without dark energy, the acceleration implies a failure of Einsteins theory of gravity across the largest distances in our universe. If however, their speed differs from that of light, then Einsteins theory must be revised. Experiments at the facilities planned for this year could resolve the question in time for the 100th anniversary of Einsteins Constant.
Source: India Today February 12, 2017 06:33 UTC