Map showing crystallographic orientation (IMAGE) American Institute of Physics Caption A map showing crystallographic orientation of a region that originally contained a void, which was then subjected to a second shock loading (the shock wave passed from the bottom to the top of the image). The void has been recompacted with enough energy to not only reach a fully dense state, but drive recrystallization at the interface, as demonstrated by the thin band of very small grains. Credit David Jones Usage Restrictions Journalists may use this image only with appropriate credit. License Licensed 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.