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Aug 7, 2020 · The results have both pointed experimentalists in new directions for how to search for dark matter, and prompted theorists to rethink existing ideas for what dark matter could be – and in some cases to come up with new ones.” Simulation of the dark-matter distribution in the universe. (V. Springel et al. 2005)
Jun 21, 2023 · Dark matter is an invisible type of matter that exerts gravitational effects on light and regular matter. 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, and the structure of the universe. Scientists calculate ...
May 4, 2023 · Scientists know that dark matter is distinct from ordinary baryonic matter because whatever particles dark matter comprises either don't reflect, absorb or emit electromagnetic radiation or if ...
Unlike for dark matter, scientists have no plausible explanation for dark energy. According to one idea, dark energy is a fifth and previously unknown type of fundamental force called quintessence ...
Aug 1, 2018 · The dark matter hypothesis originally led us to expect that galaxies with low surface brightness—that is, low amounts of visible matter—should also generally have low amounts of dark matter ...
6 days ago · This galaxy is right… Dark matter is pretty weird! Credit: NASA/JPL-Caltech. Just like dark energy, we don’t know a whole lot about dark matter. But it seems that 27% of the universe, or about one quarter, is made up of the mysterious stuff. Together, dark energy and dark matter make up 95% of the universe. That’s almost the whole universe!
Jan 8, 2020 · The dark matter concentrations detected by Hubble are 1/10,000th to 1/100,000th times the mass of the Milky Way's dark matter halo. Many of these tiny groupings most likely do not contain even small galaxies, and therefore would have been impossible to detect by the traditional method of looking for embedded stars.
