State, local and university leaders will celebrate a ribbon cutting today at 3 p.m. to officially open Catalyst, the first building in the EDGE District, located west of the University of Nebraska Medical Center campus. The 170,000 sq. ft. building emerged from the renovation of the 1906 Omaha Steel Castings building. Developed by Koelbel & Co. and GreenSlate Development, “Catalyst will facilitate the growth of research and innovation and allow entrepreneurs, investors and businesses to collaborate in industrial tract.”