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Stars are born when a large amount of matter in a space. Is compressed and heated until it starts a nuclear reaction, which consumes the material, turning it into energy. Small stars spend it slowly and last longer than large ones, but they all espulsado explode into space all the elements, 1 ยบ converting hydrogen into helium, then this carbon, oxygen, nitrogen ... And now we create heavier atoms. The matter in the universe, including ourselves, comes from within them.
These topics account Eons, 1 Eon years = 1,000,000,000 (one billion). I remember the 1st time I read about the age of the universe, then assumed they were between 10 and 20 Eons, I thought, of course, are sums in which one billion do not mean much! Eons recently calculated 14 and from what I've read recently is about 13,600,000,000 years (thirteen thousand six hundred million).
Txetxu
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