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- Dictionarydark energy
noun
- 1. a theoretical form of energy postulated to act in opposition to gravity and to occupy the entire universe, accounting for most of the energy in it and causing its expansion to accelerate: "Einstein's theories allow for the possible existence of dark energy"
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In physical cosmology and astronomy, dark energy is a proposed form of energy that affects the universe on the largest scales. Its primary effect is to drive the accelerating expansion of the universe.
Feb 5, 2024 · Dark energy is an unknown force that makes the universe expand faster over time. Learn about its discovery, history, and how it relates to Einstein's theory of general relativity and supernovae.
Nov 24, 2022 · Dark energy is a hypothetical form of energy that is proposed by physicists to explain why the universe is not just expanding but is doing so at an accelerating rate....
Dark energy is a repulsive force that dominates the universe and accelerates its expansion. Learn how it was discovered, how it affects the formation of galaxies and clusters, and what are its possible explanations.
- Adam Riess
Dark energy is the mysterious force that causes the universe to expand faster over time. Learn about its discovery, its possible explanations, and its implications for the fate of the cosmos.
Learn about the mysterious substances that affect and shape the cosmos, and how scientists are still trying to figure them out. Explore stories, images, and topics related to dark matter and dark energy from NASA.
This is so-called dark energy and its origin is one of the deepest mysteries in science. Various explanations have been put forward, with arguably the simplest being that it’s a manifestation of so-called quantum vacuum processes.
