October 2021: Dr. Mark Psiaki won the 2021 Institute of Navigation (ION) Kepler Award, the highest award in the navigation community. The Kepler Award is awarded annually to honor an individual for sustained and significant contributions to the development of satellite navigation during their lifetime (can be thought as the navigation “hall of fame”). Dr. Psiaki set a standard of rigor, clarity, and thoroughness in addressing key estimation and signal processing problems in PNT. Dr. Psiaki was RNL director Todd Humphreys’s Ph.D. advisor at Cornell.