On a clear night the naked eye can see about 4,500 stars, so the astronomers say. But in the colossal dimensions of the cosmos our stellar system is only a tiny part of an incomparably larger stellar system, one might say, containing some 20 galaxies within a radius of 1,500,000 light-years. And even this vast number of stars is small in comparison with the many thousands of spiral nebulae disclosed by the electronic telescope.. How many stars in this truly "astronomical" figure have an atmosphere suitable for life?
The idea that life can flourish only under terrestrial conditions has been made obsolete by research. It is a mistake to believe that life cannot exist without water and oxygen. Even on our own earth there are forms of life that need no oxygen. They are called anaerobic bacteria. A given amount of oxygen acts like poison on them. Why should there not be higher forms of life that do not need oxygen?
2006-11-12
03:05:28
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16 answers
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asked by
budi
2