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dark energy

Dark energy is a mystery. According to NASA, "roughly 70% of the universe is made of dark energy. Dark matter makes up about 25%. Everything on Earth, everything that we have ever observed with all of our instruments – normal matter – adds up to less than 5% of the universe". In cosmology, dark energy is a hypothetical form of energy that permeates all of space and has strong negative pressure, counteracting gravity. Currently explaining the observations of an accelerating universe as well as accounting for a significant portion of the missing mass in the universe. Could this be the æther, the alchemical quintessence, by another name...?

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