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- 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 they do interact with light, they do so incredibly weakly. This means dark matter can't be seen in traditional ways that rely on electromagnetic radiation.
www.space.com › if-dark-matter-invisible-how-do-we-know-it-exists
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Why is dark matter different from ordinary baryonic matter?
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Does dark matter interact with ordinary matter?
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Dec 24, 2017 · How is dark matter different from ordinary (visible) matter? 1) Does dark matter consists of invisible astronomical objects like white dwarfs, black holes? 2) Has dark matter not been directly observed? Is there a better explanation for dark matter. I could not understand completely the difference between dark matter and ordinary matter.
Jul 13, 2018 · Scientists have imposed conditions on how dark matter may interact with ordinary matter. In the search for direct detection of dark matter, the experimental focus has been on WIMPs, or weakly...
Aug 28, 2006 · By David Biello. Robert Caldwell, a cosmologist at Dartmouth College, explains. Dark energy and dark matter describe proposed solutions to as yet unresolved gravitational phenomena. So far as...
May 9, 2018 · Illustration by Chris Gash. 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...
- Lisa Randall
- 2018
Jan 28, 2022 · Bibliography. Dark matter makes up over 80% of all matter in the universe, but scientists have never seen it. We only assume it exists because, without it, the behavior of stars, planets and...
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...
Although both dark matter and ordinary matter are matter, they do not behave in the same way. In particular, in the early universe, ordinary matter was ionized and interacted strongly with radiation via Thomson scattering .
