MILWAUKEE (CBS 58) -- Discovery World employees announced Wednesday, Sept. 17 that they are forming a union with the International Association of Machinists and Aerospace Workers.

The Milwaukee science museum workers say they are seeking fair compensation, clearer paths for career advancement and a stronger voice in workplace decisions. Their statement said the goal of collective bargaining is to address concerns without fear of retaliation.

The IAM represents about 600,000 workers across North America in industries including education, libraries, horticulture, transportation and federal government service.

Discovery World has not publicly responded to the announcement.