Ball Corporation is a manufacturer of metal and plastic packaging, primarily for beverages and foods, and a supplier of aerospace and other technologies and services to commercial and governmental customers. Ball's principal business is the manufacture and sale of rigid packaging products, primarily for beverages and foods. Polyethylene terephthalate packaging is Ball's newest product line. The aerospace and technologies segment includes civil space systems, defense operations and commercial space operations. The defense operations business unit includes defense systems, systems engineering services and advanced antenna and video systems, as well as electro-optics and cryogenic systems and components. Civil space systems, defense operations and commercial space operations include hardware, software and services to both domestic and international customers, with emphases on space science, environmental and Earth sciences, defense and intelligence, manned missions and space exploration.