A former top NASA administrator told graduates of RIT that their futures may seem as ambiguous as outer space. But by daring to do mighty things with hope instead of fear, untold possibilities will come into focus. Thomas Zurbuchen, astrophysicist and the longest continually serving associate administrator for the Science Mission Directorate in NASA’s history, addressed the crowd during today's Academic Convocation ceremony in the Gordon Field House. More than 4,800 RIT graduates, including those attending RIT’s global campuses in China, Croatia, Dubai, and Kosovo, were recognized.