Peter Robertson joined CSIRO in 1980, spending much of the next 22 years as Managing Editor of the Australian Journal of Physics. Peter had his own research interest in the development of science and technology in Australia, especially in the history of radio astronomy, and in 1992 he published Beyond Southern Skies: Radio Astronomy and the Parkes Radio Telescope, which was shortlisted for the prestigious Eureka Prize. In 2016, Peter completed a PhD thesis at the University of Southern Queensland on pioneering radio astronomer John Bolton, which led to the book Radio Astronomer: John Bolton and a New Window on the Universe the following year. Peter also co-authored Golden Years of Australian Radio Astronomy: An Illustrated History, which was published in 2021. The picture above shows Peter, on the right, presenting a copy of his book Beyond Southern Skies to Harry Minnett at the book launch in 1992 (Image credit: CRAIA). An obituary, by Wayne Orchiston, has been published in the Journal of Astronomical History and Heritage.