Uploaded August 2023 | Updated September 2026, 3 hours ago
Dark energy is the name given to the mysterious force that’s causing the rate of expansion of our universe to accelerate over time, rather than slow down. In this case, dark means unknown rather than literally dark, as is the case with dark matter. Dark energy and dark matter are completely unrelated phenomena. Scientists estimate that dark energy makes up about 68% of the known universe while dark matter makes up about 27%. Dark energy is one of the greatest unsolved mysteries of cosmology. Similar to dark matter, currently we have no clue on what dark energy is. But we do have a few theories on what it could be.
Dark energy is the name given to the mysterious force that’s causing the rate of expansion of our universe to accelerate over time, rather than slow down. In this case, dark means unknown rather than literally dark, as is the case with dark matter. Dark energy and dark matter are completely unrelated phenomena. Scientists estimate that dark energy makes up about 68% of the known universe while dark matter makes up about 27%. Dark energy is one of the greatest unsolved mysteries of cosmology. Similar to dark matter, currently we have no clue on what dark energy is. But we do have a few theories on what it could be.
