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Star_Dust

2013-11-13 来源: 类别: 更多范文

Star Dust Star Dust Have you ever wondered how many different objects and particles enter earth’s atmosphere everyday. The earth is growing fatter under continuous microscopic flurry of space specks. The earth gathers 100 tons of space dust everyday. These space particles come from all the over the universe, from the asteroids in the asteroid belt to pieces of distant planets from the dust that was there when our planet was created. By studying these dust particles, astrophysicists say we can learn about our cosmic roots. Cosmic particles are all around us, however, it is near impossible to tell it apart from all the earthly particles in the air. Such things as pollen, pollution, soil, human skin, etc. Not only is space dust hard to see it’s even harder to catch, they are the size of 100 micrometers (Or the width of a hair). To collect space dust scientist have turned to Antarctica. Where there are little to known of earth’s floating particles. The Amundsen-Scott South Pole station draws its drinking water from a well in a cavity of the never-ending ice. As the water is pumped up through a small hole on the surface, the water is heated and dust, particles, space, earth’s, water, particle, out, ice, find, earth, way, universe, studying, speed, planets, planet, one, once, minerals, hole, heated, everyday, evaporate, degrees, day, cosmic, came, beginning, begin, back, atmosphere, astrophysicists, astrophysicist, asteroids, 900, 100
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