Space physicist Christina Cohen first joined the Space Radiation Laboratory (SRL) as a postdoctoral scholar in 1996. At the time, the group was helmed by the late Edward Stone , a giant in the fields of space physics and planetary astronomy, who spent six decades at Caltech establishing the SRL and leading numerous space missions, including NASA's twin Voyager spacecraft . "They were just the nicest people doing really cool stuff, and Ed treated everybody the same regardless of whether you were