dark matter

noun

: nonluminous matter not yet directly detected by astronomers that is hypothesized to exist to account for various observed gravitational effects

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One method of searching assumes that dark matter very rarely interacts with regular matter. —

Michael Irving, New Atlas, 12 Feb. 2025 Physicists will use this data to measure the properties of both dark matter as well as dark energy, an equally mysterious repulsive force proposed to explain the accelerating expansion of the universe. —

Justin Gest, Newsweek, 11 Feb. 2025 Magnifying the universe Astronomers are particularly interested in studying Einstein rings because they can be used to investigate dark energy as well as dark matter. —

Ashley Strickland, CNN, 11 Feb. 2025 Or the energy could hint at something more exotic: interactions between dark matter and itself, or unknown interactions between dark matter and more familiar matter. —

The Editors, JSTOR Daily, 30 Jan. 2025 See all Example Sentences for dark matter