The great Cassini spacecraft has a year to go before it plunges into the ringed planet. Project Scientist Linda Spilker returns with more amazing mission science. Emily Lakdawalla introduces us to the wonders of Gaia and its one billion stars. Bruce Betts and Mat Kaplan have their usual good time exploring the current night sky and offering another space trivia contest. Bill Nye is away. Related links are here: http://www.planetary.org/multimedia/planetary-radio/show/2016/0919-cassini-update-linda-spilker.html