What is Dark Energy...?
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In physical cosmology and astronomy, dark energy is an unknown form of energy that affects the universe on the largest scales.
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In physical cosmology and astronomy, dark energy is an unknown form of energy that affects the universe on the largest scales. The first observational evidence for its existence came from supernovae measurements, which showed that the universe does not expand at a constant rate; rather, the expansion of the universe is accelerating.[
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