Earth's Oldest Solid Material<br />Has Been Discovered Scientists say it is stardust from a meteorite found in Australia <br />half a century ago. Their findings have been published in 'Proceedings of the National Academy of Sciences.' The presolar grains in the <br />meteorite are said to be up<br /> to seven billion years old. That would make them <br />older than the sun. For around three decades, the material has been analyzed at <br />the University of Chicago. Researchers add that the material's origins point to a "star baby boom." The Field Museum also says that only 5 percent of discovered meteorites contain this type of stardust. Lead author Philipp Heck, via 'USA Today'
