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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The researchers found the dwarf planet candidate by meticulously sifting through a huge data set from a telescope in Chile that was scanning the universe for evidence of dark energy.
—
Denise Chow, NBC news, 4 June 2025
The amount of dark energy that fits inside your bedroom, say, isn’t very strong.
—Ross Andersen, The Atlantic, 30 May 2025
An international team of astronomers unveiled the most compelling evidence to date that dark energy — a mysterious phenomenon pushing our universe to expand ever faster — is not a constant force of nature but one that ebbs and flows through cosmic time.
—Katrina Miller, New York Times, 27 Mar. 2025
Scientists have long assumed that dark energy—which makes up nearly 70 percent of the universe—was a constant.
—Sara Hashemi, Smithsonian Magazine, 21 Mar. 2025
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Denise Chow, NBC news, 4 June 2025
The amount of dark energy that fits inside your bedroom, say, isn’t very strong.
—Ross Andersen, The Atlantic, 30 May 2025
An international team of astronomers unveiled the most compelling evidence to date that dark energy — a mysterious phenomenon pushing our universe to expand ever faster — is not a constant force of nature but one that ebbs and flows through cosmic time.
—Katrina Miller, New York Times, 27 Mar. 2025
Scientists have long assumed that dark energy—which makes up nearly 70 percent of the universe—was a constant.
—Sara Hashemi, Smithsonian Magazine, 21 Mar. 2025
See All Example Sentences for dark energy
Cite this Entry
“Dark energy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dark%20energy. Accessed 24 Jun. 2025.
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