O:) 3:) :|] (y) ~ ~ ~ ~~ In Coming ~~ Ill meet you in another time ~~ ~~~~~~~~~~~ | ≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈ }~~~~~~ ......... some 13.7 billion years ago, gravity caused tiny irregularities in the dark matter to grow, forming denser and denser clumps on every size scale. Simulations show that this clumping process invariably becomes a chaos of collisions and mergers. But within a billion years of the Big Bang (theory) things settle down slightly, and some of the dark-matter clumps begin to look much like the one that surrounds the Milky Way: a roughly spherical halo several hundred kiloparsecs (1kiloparsec is about 3,200 light-years) across, with a mass of about 1012 times that of the Sun, and a multitude of subhalos all the way down to the mass of Earth. .... ref:≈>
Posted on: Sun, 24 Aug 2014 13:34:46 +0000
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