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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.

In the Vinony graph

Vinony's link graph records 741 inbound references to dark energy, and connects out to Hubble–Lemaître law, accelerating expansion of the universe and mass–energy equivalence.

It sits within the topics 1998 neologisms, Concepts in astronomy and Dark concepts in astrophysics.

Vinony links it to 76 Wikipedia language editions.

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
Stack Exchange tag: astronomy.stackexchange.com/tags/dark-energy
topic's main category: Category:Dark energy
different from: dark matter
facet of: expansion of the universe

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.

Gallery (6)

Categories

1998 neologisms Concepts in astronomy Dark concepts in astrophysics Dark energy Energy (physics)Physical cosmological concepts Unsolved problems in astronomy Unsolved problems in physics