WebMar 15, 2024 · Dark matter interactions with electrons or protons during the early Universe leave imprints on the cosmic microwave background and the matter power spectrum, … WebMar 15, 2024 · Cosmological constraints on dark matter interactions with ordinary matter Dark matter interactions with electrons or protons during the early Universe leave imprints on the cosmic microwave background and the matter power spectrum, and can be probed through cosmological and astrophysical observations.
Mass density of dark matter in solar system near us
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Scientists predict a
WebOct 26, 2024 · Dark matter interacts only very weakly with ordinary matter. For example, it can pass through a light-year of lead (about 10 trillion kilometers) without being stopped. Incredibly, however,... WebDark 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 … WebSep 25, 2024 · Around 27 percent of the mass is dark matter, which is unrelated to dark energy save for its elusiveness in detection (hence the dark ). Dark matter may be objects we can’t easily... how many years is life with parole