Structure of the Chelyabinsk meteorite (IMAGE) University of Cambridge Caption Structure of the Chelyabinsk meteorite in hand-sample (a), along with interpreted formation history, through (b) impact melting, (c), solidification, and (d) late-stage fracturing. Credit Craig Walton Usage Restrictions None License Original content 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.