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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Those surveys have been crucial for tracing large-scale structure and studying dark energy.
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Samantha Mathewson, Space.com, 5 Mar. 2026
The rest is thought to be dark energy, another mysterious force scientists are still working to understand.
—Ryan Brennan, Charlotte Observer, 23 Feb. 2026
Dark matter’s, dark energy’s, and gravitation’s underlying elementary structure remains unknown.
—Big Think, 23 Feb. 2026
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
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Samantha Mathewson, Space.com, 5 Mar. 2026
The rest is thought to be dark energy, another mysterious force scientists are still working to understand.
—Ryan Brennan, Charlotte Observer, 23 Feb. 2026
Dark matter’s, dark energy’s, and gravitation’s underlying elementary structure remains unknown.
—Big Think, 23 Feb. 2026
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
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 15 Mar. 2026.
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