NEW YORK & NATIONAL HARBOR, Md.–(BUSINESS WIRE)–Sphere Entertainment Co. (NYSE: SPHR), the State of Maryland, Prince George’s County, and Peterson Companies announced today their intent to develop a new Sphere venue – which would be the second in the U.S. and first to utilize a smaller-scale design model – at National Harbor, a premier destination in the Washington, D.C. metropolitan area. The addition of Sphere would create a new Maryland landmark that drives significant economic, cultural a