Alternate Definitions for Accelerating universe

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Term: Accelerating universe

The deduction based on the observation that the most distant Type Ia supernovae are fainter than that expected from their redshifts in a matter-only dominated expanding Universe. The faintness is attributed to larger distances resulting from an accelerating Universe driven by presence of a new component with strongly negative pressure. This component that makes the Universe accelerate is named dark energy.

Created 2023.04.16
Last Modified 2023.04.16
Contributed by Ryan McGranaghan