Kapoeta (image) Washington University in St. Louis Share Print E-Mail Caption The meteorite is a piece of the surface of asteroid Vesta. Researchers at Washington University in St. Louis recently discovered presolar grains in the meteorite. Credit Ogliore Lab Usage Restrictions Use allowed with proper attribution Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.