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25. Mai 2024 · 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).
- Adam Riess
- Dark matter is 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 m...
- Dark matter’s existence was first inferred by Swiss American astronomer Fritz Zwicky, who in 1933 discovered that the mass of all the stars in the...
- Two varieties of dark matter have been found to exist. The first variety is about 4.5 percent of the universe and made of the familiar baryons (i.e...
In astronomy, dark matter is a hypothetical form of matter that appears not to interact with light or the electromagnetic field. Dark matter is implied by gravitational effects which cannot be explained by general relativity unless more matter is present than can be seen.
3. Feb. 2017 · Learn how the idea of dark matter evolved from 19th century astronomers to modern particle physicists. Explore the evidence, theories, and challenges of finding the elusive substance that makes up most of the universe.
9. Mai 2018 · Physicists and astronomers have determined that most of the material in the universe is “dark matter”—whose existence we infer from its gravitational effects but not through electromagnetic...
- Lisa Randall
- 2018
2. März 2017 · Jaco de Swart and colleagues reconstruct the history of how dark matter brought astronomers to cosmology in their Review Article, which is part of the Insight on dark matter.
- J. G. de Swart, G. Bertone, J. van Dongen
- 2017
Dark matter candidates arise frequently in theories that suggest physics beyond the Standard Model, such as supersymmetry and extra dimensions. One theory suggests the existence of a “Hidden Valley”, a parallel world made of dark matter having very little in common with matter we know.
1. Juli 2021 · Dark matter particles originate from the very early Universe, they have been in interaction with the thermal bath before decoupling from it, they have then decayed or annihilated and we observe today the particles which have survived until now, the relics.
