dark energy
a hypothetical form of energy whose negative pressure counteracts gravity and is assumed to be responsible for the universe expanding at an accelerating rate.
Origin of dark energy
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use dark energy in a sentence
These missing parts consist of dark matter and dark energy, both equally mysterious forms of new physics.
It will be used to map small objects that are far away and probe for dark matter and dark energy.
Satellite mega-constellations risk ruining astronomy forever | Neel Patel | September 2, 2020 | MIT Technology ReviewThis is the concept of dark energy, and it points to something that we are missing in our description of the universe.
Currently, the only way we can feel the presence of dark energy is with observations of the distant universe.
Dark Energy: Map Gives Clue About What It Is—but Deepens Dispute About the Cosmic Expansion Rate | Julian Bautista | July 31, 2020 | Singularity HubIf you have a kind of dark energy where the energy density is not constant, but is increasing over time, then — then you get this, this thing called phantom dark energy.
We want to know if dark energy has always been this way, or if it has changed over history—and if it will stay the same forever.
Using Black Holes to Measure Dark Energy, Like a BOSS | Matthew R. Francis | April 13, 2014 | THE DAILY BEASTWe hope to see signs of what is to come by looking at how dark energy behaves now, and how it has acted in the past.
Using Black Holes to Measure Dark Energy, Like a BOSS | Matthew R. Francis | April 13, 2014 | THE DAILY BEASTNot only that, but the rate of expansion is getting faster, a phenomenon we call “dark energy.”
Using Black Holes to Measure Dark Energy, Like a BOSS | Matthew R. Francis | April 13, 2014 | THE DAILY BEASTFrom what we can tell, the total amount of dark energy seems to increase as the Universe expands.
Using Black Holes to Measure Dark Energy, Like a BOSS | Matthew R. Francis | April 13, 2014 | THE DAILY BEASTIf dark energy comes and goes, though, maybe the rate of expansion will slow down again.
Using Black Holes to Measure Dark Energy, Like a BOSS | Matthew R. Francis | April 13, 2014 | THE DAILY BEAST
Scientific definitions for dark energy
A form of energy hypothesized to reside in the structure of space itself, responsible for the accelerating expansion of the universe. Dark energy theoretically counterbalances the kinetic energy of the universe's expansion, entailing that that the universe has no inherent curvature, as astronomical observations currently suggest. Dark energy appears to account for 73 percent of all the energy and matter in the universe. See also big bang.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for dark energy
Notes for dark energy
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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