ST. CLOUD -- 2000 years of astronomical discoveries will be presented at St. Cloud State University.

David Williams will talk about everything from Galileo's observations, the discovery of dark matter, dark energy and the expansion of the universe.  Williams has been an astronomy educator for more than 40 years and recently retired as the planetarium director.

The discussion is at 7:00 p.m. at Ritsche Auditorium. It's free and open to everyone.