Gordon Mackie Profile Topics Started Replies Created Engagements Favourites Search topics: Topics Engaged In Viewing 3 topics - 1 through 3 (of 3 total) Topic Voices Posts Last Post Use of Non-Technical Units in astronomy Started by: Nick James in: Asteroids 10 18 1 year, 7 months ago Jeremy Shears LandSat 9 Centaur Upper Stage De-Orbit Burn Started by: William Stewart in: General Discussion 7 8 3 years, 1 month ago Neil Morrison Stirling Observatory Started by: Denis Buczynski in: History 5 5 7 years, 11 months ago David Scanlan, FRAS Viewing 3 topics - 1 through 3 (of 3 total)