Dark matter is implied by gravitational effects that cannot be explained by general relativity unless more matter is present than can be observed.

Oct 26, 2025 · dark matter, a component of the universe whose presence is discerned from its gravitational attraction rather than its luminosity. Dark matter makes up 30.1 percent of the …

Aug 29, 2025 · While dark matter is invisible, it does have some things in common with ordinary matter: It takes up space and it holds mass. Because of this, we can see how it interacts with …

Unlike normal matter, dark matter does not interact with the electromagnetic force. This means it does not absorb, reflect or emit light, making it extremely hard to spot.

6 days ago · Scientists have set about discovering if dark matter behaves like ordinary matter in the cosmos, with the answer revealing more about this mysterious "stuff" and casting doubt on …

Dark matter makes up most of the mass of galaxies and galaxy clusters, and is responsible for the way galaxies are organized on grand scales. Dark energy, meanwhile, is the name we give the …

Jul 26, 2025 · Beneath that shimmering facade lies something much deeper, more mysterious, and profoundly more massive: dark matter. It is invisible. It emits no light, reflects nothing, and …

There is strong evidence that more than 80% of all the matter in the universe is not composed of familiar atoms and molecules, and does not scatter, absorb, or emit light at any detectable …

Jun 21, 2023 · Dark matter is a hypothesized form of matter that does not interact with light or other forms of electromagnetic radiation, but exerts gravitational effects on visible matter, light, …

1 day ago · Debate on dark matter resolved by dwarf galaxy analysis—study shows visible matter alone cannot explain gravitational fields, supporting dark matter theory over MOND. New …