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dark energy

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dark energy

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repulsive property with constant energy density theorized to make up most of the universe’s energy content to account for its observed expansion

AI overview

Dark energy is a mysterious force that makes up most of the universe's energy and has a repulsive property that pushes galaxies apart from each other. Scientists theorized its existence to explain why the universe's expansion is speeding up rather than slowing down as gravity would suggest.

AI-generated from the Wikipedia summary — may contain errors.

Wikidata facts

Instance of
form of energy
Subclass of
energy
Image
CMB universe expansion.png
Show 7 more facts
on focus list of Wikimedia project
Wikipedia:Vital articles/Level/4
studied by
astronomy
Commons category
Dark energy
topic's main category
Category:Dark energy
different from
dark matter
Sources (3)

via Wikidata · CC0

~37 min read

Encyclopedic overview

Expansion · Future

Hubble's law · Redshift

Excerpted from Wikipedia’s “dark energy” article, available under the CC BY-SA 4.0 licence.

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