Stone’s remarkable tenure on NASA’s longest-operating mission spans decades of historic discoveries and firsts. Edward Stone has retired as the project scientist for NASA’s Voyager mission a half-century after taking on the role. Stone accepted scientific leadership of the historic mission in 1972, five years before the launch of its two spacecraft, Voyager 1 and Voyager 2. Under his guidance, the Voyagers explored the four ...

For decades, scientists have been trying to solve a vexing problem about the weather in outer space: At unpredictable times, high-energy particles bombard the earth and objects outside the earth’s atmosphere with radiation that can endanger the lives of astronauts and destroy satellites’ electronic equipment. These flare-ups can even trigger showers of radiation strong enough to reach passengers in airplanes ...

NASA has taken it seriously as this unique phenomenon will finally result in weakening the earth’s magnetic field and eventually affects the protective field that shields us from solar flares, and disrupts satellite communication. Already, over South America and the southern Atlantic Ocean, this unusually weak spot in the field – called the South Atlantic Anomaly, or SAA – allows ...