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The results show that cold dark matter produces a reasonable match to observations, but hot dark matter does not. The sky at energies above 100 MeV observed by the Energetic Gamma Ray Experiment Telescope (EGRET) of the Compton Gamma Ray Observatory (CGRO) satellite (1991–2000). 1988 – The CfA2 Great Wall is discovered in the CfA2 redshift ...
There are two main candidates for non-baryonic dark matter: new hypothetical particles and primordial black holes. Unlike baryonic matter, nonbaryonic particles do not contribute to the formation of the elements in the early universe (Big Bang nucleosynthesis) [46] and so its presence is revealed only via its gravitational effects, or weak lensing.
Mack has described dark matter as "one of science's most pressing enigmas". [26] [27] She has worked on dark matter self-annihilation [28] and whether the accretion of dark matter could result in the growth of primordial black holes (PBHs). [29] She has worked on the impact of PBHs on the cosmic microwave background. [30]
A cosmic ocean, cosmic sea, primordial waters, or celestial river is a mythological motif that represents the world or cosmos enveloped by a vast primordial ocean. Found in many cultures and civilizations, the cosmic ocean exists before the creation of the Earth. From the primordial waters the Earth and the entire cosmos arose.
Dark matter is called ‘dark’ because it’s invisible to us and does not measurably interact with anything other than gravity. It could be interspersed between the atoms that make up the Earth ...
The answer, especially about alien life forms, likely lies in the dark, and the best clues might be found at the deepest parts of the ocean near, methane seeps where the sun can't penetrate.
States of matter that are not commonly encountered, such as Bose–Einstein condensates, fermionic condensates, nuclear matter, quantum spin liquid, string-net liquid, supercritical fluid, color-glass condensate, quark–gluon plasma, Rydberg matter, Rydberg polaron, photonic matter, Wigner crystal, [1] Superfluid and time crystal but whose ...
Dark matter may not give off any light or radiation, but we might be able to watch it smash into atoms here on Earth. Dark matter makes up 85% of all matter in the Universe, but astronomers have ...