The complete life cycle is shown below. To see each of the three steps more slowly, and to learn exactly what's happening in each, click on the three thumbnail images below.
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Ancient grains of dust from space can be found on Earth − and provide clues about the life cycle of starsThe picture below is an image of such a grain taken by a scanning ... The star was at the end of its life cycle when it profusely produced and expelled dust into space more than 4.6 billion ...
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