25 YEARS AGO TODAY, Voyager 2 made its close pass of the planet Uranus.


Voyager 2 launched on August 20, 1977. In 1973-74, I was a member of the Jet Propulsion Laboratory design team for Voyager’s communication system. The work I did there eventually led to my doctoral dissertation, Concatenated Convolutional Codes: Applications to Deep Space Telecommunication.