Agnar Laerad Hall is a Mission Control Center Systems Test Engineer at NASA’s Johnson Space Center in Houston, Texas, specializing in assessment of the External Interface Services that allow vehicle command and telemetry data to pass between Mission Control and NASA’s international and commercial partners. A Houston native, he obtained his bachelor’s degree in astrophysics from the University of Colorado and a Master of Science in astronomy with a focus in cosmology from New Mexico State University. Before arriving at NASA, Agnar studied the formation and evolution of structure on the largest scales of the Universe using data from the Hubble Space Telescope and other observatories. He has presented his research on galaxy overdensities within giant Lyman-alpha blobs at various scientific conferences including an annual meeting of the American Astronomical Society, of which he is a member. As for smaller structures, he has a particular fondness for the Jovian system, which he studied using archival Voyager data in his earliest days as a research assistant.