Current observations suggest that the nature of dark energy can be explained by invoking a term in Albert Einstein’s equations of gravity, called the Cosmological Constant. (Representational image) Current observations suggest that the nature of dark energy can be explained by invoking a term in Albert Einstein’s equations of gravity, called the Cosmological Constant. The first one is about the existence of something called ‘dark energy’, which is speeding up the expansion of the universe at present. Current observations suggest that the nature of dark energy can be explained by invoking a term in Albert Einstein’s equations of gravity, called the Cosmological Constant. But, for this idea to work, the cosmological constant should have a very specific — and enormously tiny — value.

Source: Indian Express August 12, 2017 00:33 UTC