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The name for the component or modification responsible for the observed late-time accelerated expansion; a cosmological constant is the simplest current model.
wp-physics-dark-energynasa-dark-energynasa-big-bangEach relation below ends at this concept.
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The standard cosmological model represents dark energy by a cosmological constant.
The source supplies a substantive formal ingredient, dynamical sector, law, field content, or mechanism of the target theoretical framework.
nasa-dark-energynasa-big-bang