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It seems to me that as the universe expands, it would lose density and therefore clocks would run faster as the universe expands. Is this correct? No. At a conceptual level, you can't define "faster" if you don't have something else to compare with. In technical terms, gravitational time dilation is only defined in a static spacetime, and cosmological ...


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Dark energy is an unknown or unattributed form of energy that is separate and distinct from the other forms of energy. It is not anti-engery. It is dark energy. Anti-energy (were such a thing to exist) would annihilate any form of energy. Dark energy is called "dark" because we aren't exactly sure what it really is or what causes it. The most abundant forms ...



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