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Another year <a href=" http://luisamartelo.com/index.php/french-essay-on-my-family/ ">moral dilemma essay</a> Our Sun is about 4.6 billion years old, but astronomers have only been observing it with telescopes for about 400 years. In order to get a better picture of how our star ages, scientists must look outside our solar system and observe others. The latest find allows astronomers to look about 4 billion years into the future of our sun. |
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