He helped send the twin spacecraft on their way in 1977. Decades and billions of miles later, they are still probing — “Earth’s ambassadors to the stars,” as he put it. By Sam Roberts Edward C. Stone, ...

Ed Stone, who led JPL for a decade and worked on the La Cañada Flintridge institution's Voyager mission for five decades, has died. (Luis Sinco / Los Angeles Times) Ed Stone, the scientist who guided ...

Ed Stone, the scientist who guided NASA’s breakthrough Voyager mission to the outer planets for 50 years and led the Jet Propulsion Laboratory when it landed its first rover on Mars, died Tuesday. He ...