Joseph M. Chamberlain, pioneer of planetarium shows, has died

"Give the audience 40 minutes of astronomy and there would be no audience. It has to be a combination of science and showmanship. If there's a sunrise, we furnish appropriate sunrise music."—Joseph M. Chamberlain, who died this week at age 88. His work advanced astronomical education and entertainment "by leading planetariums in New York and Chicago into a new era of technology, instruction and visitor experience."