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Archive for the ‘Universe’ Category

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“How did it all began?” a common question that everyone is use to ask in all aspect of matters such as “The Evolution” perhaps they would have ask how and why, when and where. This very question had been flabbergasted yet baffled by a staggering amount of individuals including scientists, theoretical physicists, astrophysicists, astronomer and so on. They might even spend their whole spare time on this question just to voice out their very own theories and evidences to support it.

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Usually this “Dark Matter” is define as a hypothetical matter that is undetectable by its emitted radiation, but whose presence can be inferred from gravitational effects on visible matter in term of astronomy & cosmology. Dark Matter is putative on the account of “missing mass” in the universe, including the rotational speeds of galaxies, orbital velocities of galaxies in clusters, gravitational lensing of background objects by galaxy clusters such as the Bullet Cluster, and the temperature distribution of hot gas in galaxies and clusters of galaxies. This sort of matter is observed in a way that it plays a central role in structure formation and galaxy evolution, and has measurable effects on the anisotropy of the cosmic microwave background. All these lines of evidence suggest that galaxies, clusters of galaxies, and the universe as a whole contain far more matter than that which interacts with electromagnetic radiation: the remainder is frequently called the “dark matter component,” even though there is a small amount of baryonic dark matter. The largest part of dark matter which does not interact with electromagnetic radiation is not only “dark” but also by definition utterly transparent; in recognition of this, it has been referred to as transparent matter by some astronomers.

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