From the first sentence, I could tell that this article was going to divulge into a lot of interesting facts and details about the age and history of meteorites. Scientists have always looked at meteorites closely in order to understand the age and formation of the solar system, but this article shows compelling new clues about it. The article explains the formation of the metallic core's in meteorites and that it is fully possible that they may have formed over 4.5-4.6 billion years ago (which is just before Earth was "made"). This article does an excellent job of showing how the dissection and studying of the core of meteorites can tell how old the solar system is.
http://www.sciencedaily.com/releases/2012/07/120722135204.htm
It would be better to elaborate on the "compelling clues" that allow us to date the solar system and age of Earth. There simply isn't enough detail to this post, if you are attempting to summarize or highlight key points, you need to give more information.
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