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This Is The Real Reason We Haven't Directly Detected …
- https://www.forbes.com/sites/startswithabang/2018/10/05/this-is-the-real-reason-we-havent-directly-detected-dark-matter/
- The dark matter really does pass right through one another, and accounts for the vast majority of the mass; the normal matter in the form of gas creates shocks (in X-ray/pink, above), and only ...
Why can't we see dark matter? - Quora
- https://www.quora.com/Why-cant-we-see-dark-matter
- Answer (1 of 17): The short answer: because it doesn't interact with light the way "visible" matter does. The longer answer: So far we have discovered four fundamental forces (or "interactions"): the Strong Nuclear Force, the Weak Nuclear Force, …
What Is Dark Matter? | NASA
- https://www.nasa.gov/audience/forstudents/9-12/features/what-is-dark-matter.html
- The invisible matter that we can't detect is called "dark matter." The Swiss astronomer Fritz Zwicky first used the term "dark matter" in the 1930s. He studied the so-called Coma galaxy cluster and, specifically, how fast it revolves. Clusters are like merry-go-rounds: Their speed of revolution depends on the weight and position of the objects ...
Why can't we see dark matter in the solar system? - Physics Forums
- https://www.physicsforums.com/threads/why-cant-we-see-dark-matter-in-the-solar-system.968624/
- Wes Tausend said: We can't see dark matter because it is clear like glass. No, that is a very poor analogy. "Clear like glass" implies a macro-sized object. The consensus is that DM is particles and it is not a meaningful statement to say a particle is "clear like glass". Apr 5, 2019.
Why can't "missing mass" (=dark matter) be photons?
- https://physics.stackexchange.com/questions/45387/why-cant-missing-mass-dark-matter-be-photons
- 1. Photons don't have mass. So your assumption's incorrect, although I don't know how much of a (say) main sequence star's mass gets converted into photons over its lifespan. Photon's can't account for, say, dark matter, because dark matter has mass. Thermal energy (in the vacuum) is comprised of photons, which can spontaneously form particle ...
Dark matter - Wikipedia
- https://en.wikipedia.org/wiki/Dark_matter
- Dark matter is a hypothetical form of matter thought to account for approximately 85% of the matter in the universe. Dark matter is called "dark" because it does not appear to interact with the electromagnetic field, which means it does not absorb, reflect, or emit electromagnetic radiation (like light) and is, therefore, difficult to detect.Various astrophysical observations – including ...
What Is Dark Matter, and Where Is it Hiding? - Caltech …
- https://magazine.caltech.edu/post/where-is-dark-matter-hiding
- Hidden-sector dark matter is proposed to range in mass from about one-trillionth that of a proton to 1 proton. Technically, this translates to masses between milli- and giga-electron-volts (eV); a proton has a mass of about one giga-eV. “We are moving to a new frontier of lighter dark matter,” says Zurek.
Why Don’t Dark Matter Simulations And Observations …
- https://www.forbes.com/sites/startswithabang/2020/09/23/why-dont-dark-matter-simulations-and-observations-match-up/
- For the past 40+ years, this has been the story of dark matter. By adding just one new ingredient to the Universe — a new species of cold, collisionless, massive particle — …
Why doesn't dark matter obscure light? | Astronomy.com
- https://astronomy.com/magazine/ask-astro/2020/01/why-doesnt-dark-matter-obscure-light
- It is simply the nature of dark matter and why it is so difficult to study. But some models of dark matter state that on rare occasions, dark matter particles could be capable of interacting with ...
Dark matter 'can't touch this' or even itself, researchers find
- https://newatlas.com/study-of-colliding-galaxies-reveals-dark-matter-cant-touch-itself/36790/
- The researchers found that dark matter also does not slow down as galaxies collide, but this is not because it is far away from other dark matter as with stars – dark matter is believed to be ...
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