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www.britannica.com/science/dark-matter

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 matter-energy composition of the universe; the rest is dark energy (69.4 percent) and “ordinary” visible matter (0.5 percent).

en.wikipedia.org/wiki/Dark_matter

Dark matter aggregation and dense dark matter objects. If dark matter is composed of weakly-interacting particles, an obvious question is whether it can form objects equivalent to planets, stars, or black holes. The answer has historically been that it cannot, because of two factors:

science.nasa.gov/astrophysics/focus-areas/what-is-dark-energy

What is dark energy? More is unknown than is known — we know how much there is, and we know some of its properties; other than that, dark energy is a mystery — but an important one. Roughly 70% of the Universe is made of dark energy. Dark matter makes up about 25%. The rest - everything on Earth, everything ever observed with all of our instruments, all normal matter adds up to less than 5 ...

www.sciencedaily.com/news/space_time/dark_matter

Dark Matter and Dark Energy. Read what astronomers are discovering about a gaping hole in the universe, how dark matter clumps contribute to galaxy formation and more. Space images.

en.wikipedia.org/wiki/Dark_energy

The mass–energy of dark matter and ordinary (baryonic) matter contribute 27% and 5%, respectively, and other components such as neutrinos and photons contribute a very small amount. The density of dark energy is very low (~ 7 × 10 −30 g/cm 3) much less than the density of ordinary matter or dark matter within galaxies. However, it ...

www.sciencedaily.com/releases/2018/02/180228144424.htm

Search for first stars uncovers 'dark matter': Discovery offers first direct proof that dark matter exists and that it is made up of low-mass particles. ScienceDaily. Retrieved April 16, 2019 from ...

www.outerplaces.com/science/item/17371-dark-matter...

Dark matter is one of the most mysterious things in the universe—but not anymore, thanks to this "hugely important" discovery. 'Hugely Important' Discovery May Finally Explain Dark Matter Where ...

home.cern/science/physics/dark-matter

Dark matter. 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. In fact, researchers have been able to infer the existence of dark matter only from the gravitational effect it seems to have on visible matter. Dark matter ...

www.astronomy.com/news/2019/03/ghostly-galaxy-without-dark-matter...

One year ago, astronomers were flabbergasted when they discovered a galaxy almost entirely devoid of dark matter. Now, one new study has verified the initial discovery, while a second study found ...

www.iflscience.com/space/do-gravitational-waves-hint-at...

Physicists from John Hopkins University believe that the discovery of gravitational waves provides more evidence for the dark matter/black hole connection. The black holes spotted by the ...