The oldest material on Earth

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The oldest material on Earth



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The oldest material ever found on earth was discovered, it is seven billion years ago, half a century ago, just the same year we arrived at the moon for the first time, a meteorite crashed in Australia.



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It is called Murchison and it has a particularity, it has inside it the oldest material that we have ever found on the earth interstellar dust grains of ancient stars that have already exploded, this meteorite like many others has been sweeping and encapsulating these materials, finally taking them to the earth, with the difference that it has done so in large enough quantities so that its age can be determined.



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Seven thousand million years, to put it in perspective the solar system is four thousand six hundred million years old and the universe 13 thousand 800 million years, to reach this number we studied neon isotopes present inside the grains, because they they create when this element interacts with cosmic rays, as well as curiosity the tables of values ​​with which these calculations were made were created thanks to the data that Voyager 1 transmitted to us about the nature of these rays in interstellar space, 42 years later And this titan keeps making history.





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