Yerkes Observatory
- Episode aired Mar 20, 1988
Yerkes Observatory, at Williams Bay near Chicago, is a most unusual place. Its main telescope is not a reflector, but a refractor - the world's largest. Yerkes is in the forefront of scienti... Read allYerkes Observatory, at Williams Bay near Chicago, is a most unusual place. Its main telescope is not a reflector, but a refractor - the world's largest. Yerkes is in the forefront of scientific research, as Patrick Moore explains.Yerkes Observatory, at Williams Bay near Chicago, is a most unusual place. Its main telescope is not a reflector, but a refractor - the world's largest. Yerkes is in the forefront of scientific research, as Patrick Moore explains.