Today in HistoryToday is Sunday, Aug. 20, the 232nd day of 2017. There are 133 days left in the year.Today's Highlight in History:On August 20, 1977, the United States launched Voyager 2, an unmanned spacecraft carrying a 12-inch, gold-plated copper phonograph record containing images, greetings in dozens of languages, samples of music and sounds of nature.