What is a star? A star is a huge shining ball of gas held together by gravity and produces a huge amount of light and energy. Stars are grouped in huge structures called galaxies. � There are 70,000 million, million, million stars in the known universe, according to a study by Australian astronomers. Its about 10 times as much stars as grains of sand on all the worlds beaches and deserts.� (�Star survey reaches 70 sextillion.�CNN.2003. 23 July.2003 http://www.cnn.com/2003/TECH/space/07/22/stars.survey/. Stars like people, have lifecycles. They are born, go through several phases, and then they die. Life cycles of stars follow three general patterns. High-mass stars, intermediate stars, and low-mass stars. (Green, Paul J. �Star� Worldbook, 2002.) �Intermediate-mass stars start out as a cloud that eventually develops into an intermediate star.� (Green, Paul J. �Star� Worldbook, 2002.) This Process takes about 100,000 years until it then collapse into a proto star. Intermediate stars go through about seven phases. Phase one, T-taun phase. The T-taun phase is when a star va......

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