Lance LewmanNarrator
Holly GilbertHerself - NASA Goddard Space Flight Center
Bill MurtaghHimself - National Oceanic and Atmospheric Administration Space Weather Center
Jim GreenHimself - NASA Planetary Science
Todd HoeksemaHimself - Stanford University
Sarah GibsonHerself - National Center for Atmospheric Research, High Altitude Observatory
Scott McIntoshHimself - National Center for Atmospheric Research, High Altitude Observatory
Karel SchrjiverHimself - Lockheed Martin
