Today I saw this tweet from the official Twitter account of Voyager Two
It reads "20 August 1977 - launch date for Voyager 2. I was launched 35 years ago today."
I had no idea this anniversary was coming up.
We go on about Opportunity and how much longer it lasted beyond it's expected life, both Voyager craft have been going longer and are still sending back data.
A while ago I was given a copy of a set of proceedings from the James Watt International Gold Medal Lecture, given on 25 June 1980. For reference it's reference is Proceedings 1980, Volume 194 No.28 entitled "The Voyager Space Craft" given by Raymond L Heacock. ISSN 0020-3483
I was given permission by the Council of the Institution of Mechanical Engineers to post an electronic copy on one of my websites.
It is a pdf file and this is a direct link to that file.