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Interesting Facts about Dark Matter

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Dark Matter: Some Interesting Facts

☻ The strongest evidence for the presence of dark matter is provided by gravitational lensing studies of the bullet cluster. Collision of two galaxies was observed in this cluster, but it was astonishing that the galaxies merged together without any disaster, or the stars smashing into each other. This means that, there was some invisible gravitational field governing the stars of these galaxies.

☻ A dark matter halo surrounds the whole galaxy and extends beyond its edges. The Milky Way galaxy is enveloped by a much bigger halo than the actual galaxy, and is spherical in shape.

Gravitational lensing is used to detect dark matter in the universe. Basically, the gravity of dark matter is responsible for bending light from distant light sources. To detect dark matter, astronomers check for bending of light, in cases of absence of visible matter.

☻ Recent studies and observations seem to point toward a universe with a mixture of both hot and cold dark matter. The temperature determines the speed of the particles; hot particles move nearly at the speed of light. A good example is neutrinos. Neutrinos are weakly-interacting subatomic particles which do not carry an electric charge, hence, leaving them unaffected by electromagnetic forces. On the other hand, cold particles move much slower than hot particles. The hypothesis of the Peccei-Quinn theory in 1977 talks about ‘Axions’. According to this theory, this hypothetical particle should have very low mass, and could be a possible component of cold dark matter.

Dark matter is just one of the several unknowns of space. A lot of research is being done on dark matter by the U.S. government. Projects like the Super Cryogenic Dark Matter Search (SuperCDMS), the LUX-ZEPLIN (LZ) Experiment, and the Axion Dark Matter Experiment Gen2 (ADMX-Gen2) have been initiated by the U.S. government for studying dark matter and its Weakly Interacting Massive Particles (WIMPS).

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  1. mpc755

    There is evidence of dark matter every time a double slit experiment is performed; it’s what waves.
    occupies three dimensional space. Dark matter is physically displaced by the particles of matter which exist in it and move through it.

    The Milky Way’s halo is not a clump of stuff anchored to the Milky Way. The Milky Way is moving through and displacing the dark matter.

    The Milky Way’s halo is the state of displacement of the dark matter.

    The Milky Way’s halo is the deformation of spacetime.

    What is referred to geometrically as the deformation of spacetime physically exists in nature as the state of displacement of the dark matter.

    A moving particle has an associated dark matter displacement wave. In a double slit experiment the particle travels through a single slit and the associated wave in the dark matter passes through both.

    Q. Why is the particle always detected traveling through a single slit in a double slit experiment?
    A. The particle always travels through a single slit. It is the associated wave in the dark matter which passes through both.

    What ripples when galaxy clusters collide is what waves in a double slit experiment; the dark matter.

    Einstein’s gravitational wave is de Broglie’s wave of wave-particle duality; both are waves in the Dark matter.

    Dark matter displaced by matter relates general relativity and quantum mechanics.

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