In this episode, University of Cincinnati researchers Lawrence Mazlack and Julia Taylor discuss their efforts to improve human-computer communications by teaching computers about contextual humor. And Carl Raggio, formerly of the Jet Propulsion Laboratory, talks about the efforts to launch Explorer 1, the first US satellite, which went into orbit on January 31st, 1958, exactly 50 years ago this week. Plus we'll test your knowledge of some recent science in the news.