It's Not Your Grandpa's Planetarium Anymore

Nearly three thousand planetariums dot the U.S. terrestrial landscape, featuring celestial shows about stars, planets, solar systems and galaxies, often projected onto an overhead dome-shaped screen by a technology that hasn't changed much since it was introduced in 1923: the "star ball."

DIGITAL CHINA HOLDINGS HEWLETT-PACKARD LOGITECH INTERNATIONAL SAIC