A NASA Official Is Coming To ETSU Ahead Of The Launch Of One Of The Agency’s Most Important Missions. Dr. Trina Ray, Deputy Manager For The Europa Clipper Mission, Will Give A Free Lecture On Thursday, October 3rd At 4:30 P.M. In Brown Hall. The Europa Clipper Is Scheduled To Launch On October 10th, Heading To Jupiter’s Icy Moon, Europa, To Study Its Potential For Life. Following The Lecture, Ray Will Lead A Teacher Workshop On Bringing Space Science Into Classrooms.