Osaka University physicist Dr. Youichi Sakawa (left), Hye-Sook Park, and alignment operator Daren Hart prepare for an experiment in the NIF Control Room. The experiment was in support of an international collaboration looking at the nature of collisionless shocks, which are responsible for the properties of many astrophysical phenomena including supernova remnants, gamma-ray bursts, jets from active galactic nuclei, and cosmic ray acceleration. Credit: Jason Laurea