Monday, October 24, 2011

That Dark Stuff Scientist Talk About

Dark matter is a crazy phenomenon is astrology because it is something that can not be proven that exists but scientist knows it is there. Dark Matter is a invisible force that supposedly  makes up 98% of the universe and can be detected through the gravitational pull on normal matter that makes up stars and planets. the dark matter gets darker when scientist come up with a new theory of "cold dark matter". Scientist have made a model to envision dark matter made up of cold, slow moving exotic particles that clump together because of gravity; this is how cold dark matter was discovered. This model proves in most situations correct until it is applied to mini dwarf galaxies where dark matter appears more spread out than it should be. Other scientist conducted a new study in calculating the mass distribution of two dwarf galaxies but these measurements completely contradict cold dark matter theory, making the problem worse. The model states that galaxies should be packed with dense clumps of dark matter  but it is spread out evenly in dwarf galaxies. Some researches have suggested that dark matter operates a different way by tending to spread out when it interacts with normal matter instead of contracting. In the end of this study scientist know less about this phenomenon then before.

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