Dark energy

Dark energy is a mysterious form of energy that accelerates the rate of expansion of the universe over time. It accounts for about 68 per cent of the universe. It was discovered by scientists in the 1990s while trying to measure the rate of deceleration of the universe’s expansion. This force is becoming stronger as the universe expands.
According to scientists, the known properties of dark energy are consistent with a cosmological constant in Einstein’s theory of general relativity. Recently, XENON1T experiment – the world’s most sensitive dark matter experiment – may have detected dark energy directly for the first time.

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