Eric Williams, systems and facilities manager of the Astronomy Department and Van Vleck Observatory, stands outside the observatory's 24-inch Perkin research reflector, where he often hosts weekly open houses and star gazings. "What's beautiful about astronomy is that there are always unanswered questions, and when you answer one, that will open up five more questions," said Eric Williams, the systems and facility manager for the Astronomy Department and Van Vleck Observatory. "I'm always curious." An interest in astronomy, physics and computers led Williams to Wesleyan in 1996. "I've always wanted a job like this," Williams said, "I get to experiment…