dark energy
noun
: a hypothetical form of energy that produces a force that opposes gravity and is thought to be the cause of the accelerating expansion of the universe
Examples of dark energy in a Sentence
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At first blush, black holes and dark energy seem to have nothing to do with each other.
—
Byadam Mann, science.org, 13 Feb. 2023
This endeavor will yield 60 petabytes of data on the composition of the universe, the nature and distribution of dark matter, dark energy and the expansion of the universe, the formation of our galaxy, our intimate little solar system, and more.
—Isaac Schultz / Gizmodo, Quartz, 3 Apr. 2024
This technology is already being developed for use on another mission—the Nancy Grace Roman Space Telescope, an infrared telescope designed to study cosmic structure and dark energy, set for launch later this decade.
—Dan Falk, Smithsonian Magazine, 29 Jan. 2024
Voids seemed to offer astronomers a promising way of studying what might be driving dark energy.
—Michael D. Lemonick, Scientific American, 1 Jan. 2024
Because these galaxies are so far away and because the Universe is expanding due to dark energy, the electromagnetic emissions of these early galaxies have redshifted to the far infrared regions of the electromagnetic spectrum.
—Conor Feehly, Discover Magazine, 14 Oct. 2023
But 5 billion years ago, the matter contents of the cosmos diluted too much, allowing dark energy to take hold.
—Paul Sutter, Ars Technica, 24 Apr. 2023
The trouble is that no one has been able to say with certainty whether dark energy is actually so fixed—and if dark energy’s strength can change over time, reconciling this with the rest of physics may require rethinking our understanding of gravity.
—Ashley Balzer Vigil, Scientific American, 24 Jan. 2024
Some new physics models tweak dark energy, adding a surge of cosmic acceleration in the early moments of the universe, before electrons and protons glommed onto each other.
—Quanta Magazine, 19 Jan. 2024
Byadam Mann, science.org, 13 Feb. 2023
This endeavor will yield 60 petabytes of data on the composition of the universe, the nature and distribution of dark matter, dark energy and the expansion of the universe, the formation of our galaxy, our intimate little solar system, and more.
—Isaac Schultz / Gizmodo, Quartz, 3 Apr. 2024
This technology is already being developed for use on another mission—the Nancy Grace Roman Space Telescope, an infrared telescope designed to study cosmic structure and dark energy, set for launch later this decade.
—Dan Falk, Smithsonian Magazine, 29 Jan. 2024
Voids seemed to offer astronomers a promising way of studying what might be driving dark energy.
—Michael D. Lemonick, Scientific American, 1 Jan. 2024
Because these galaxies are so far away and because the Universe is expanding due to dark energy, the electromagnetic emissions of these early galaxies have redshifted to the far infrared regions of the electromagnetic spectrum.
—Conor Feehly, Discover Magazine, 14 Oct. 2023
But 5 billion years ago, the matter contents of the cosmos diluted too much, allowing dark energy to take hold.
—Paul Sutter, Ars Technica, 24 Apr. 2023
The trouble is that no one has been able to say with certainty whether dark energy is actually so fixed—and if dark energy’s strength can change over time, reconciling this with the rest of physics may require rethinking our understanding of gravity.
—Ashley Balzer Vigil, Scientific American, 24 Jan. 2024
Some new physics models tweak dark energy, adding a surge of cosmic acceleration in the early moments of the universe, before electrons and protons glommed onto each other.
—Quanta Magazine, 19 Jan. 2024
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'dark energy.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Dark energy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dark%20energy. Accessed 27 Apr. 2024.
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