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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That discovery was crucial in giving researchers an understanding of less-visible matter in the cosmos, known now as dark matter and dark energy.
—
Bob Goldsborough, Chicago Tribune, 7 Feb. 2026
In 1998 two teams of astronomers announced that the expansion is accelerating, getting faster all the time, caused by a still-mysterious entity called dark energy.
—Phil Plait, Scientific American, 6 Feb. 2026
There's some, but not overwhelming, evidence that dark energy is evolving.
—Big Think, 29 Jan. 2026
Another equally mysterious force called dark energy makes up the rest.
—CBS News, 26 Jan. 2026
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Bob Goldsborough, Chicago Tribune, 7 Feb. 2026
In 1998 two teams of astronomers announced that the expansion is accelerating, getting faster all the time, caused by a still-mysterious entity called dark energy.
—Phil Plait, Scientific American, 6 Feb. 2026
There's some, but not overwhelming, evidence that dark energy is evolving.
—Big Think, 29 Jan. 2026
Another equally mysterious force called dark energy makes up the rest.
—CBS News, 26 Jan. 2026
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 14 Feb. 2026.
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