efaardvark

Oh no!  Ed Stone just died!  Dr. Ed Stone was a former Jet Propulsion Lab director and chief scientist for the Voyager mission.  He was the only scientist to have worked on both the spacecraft that flew closest to the sun and the spacecraft that is furthest from it.  (The Parker Solar Probe occasionally flies so close to the sun that it flies through the upper part of the Sun's "atmosphere".  The Voyager 2 spacecraft, one of two that the mission launched in the 1970s, has left the solar system and is now over 24 billion km / 15B mi from the Sun in interstellar space.)