Dr Cyril Hazard passed away on the 14th of June 2025, aged 97. As a student at of the University of Manchester, Cyril worked with Sir Bernard Lovell and Robert Hanbury Brown. In 1950, he co-detected radio emission from the Andromeda Galaxy using the Jodrell Bank 218-ft transit telescope — an important early milestone in radio astronomy.  Cyril then used the technique of Lunar Occultation observations at Parkes to accurately determine the position of the strong radio source 3C273, soon after the start of routine observations with Murriyang, the 64m radiotelescope. Three separate observations, in March, August and October 1962, were successfully undertaken by Cyril together with the Parkes Team of John Bolton, John Shimmins and Brian Mackey, which yielded a final radio position with arcsecond accuracy. This provided the precision necessary for identification of the source 3C273, and ultimately to the optical identification and spectroscopic measurement. Thus 3C273 became the first quasar, the first radio Jet, the first inverted spectrum radio source, the first sub-arcsecond radio position, the first sub-arcsecond radio structure, and the first radio-optical reference frame tie. As Ron Ekers has noted, “Of the many discoveries made at Parkes, quasars stand out as the most important – they caused a paradigm shift  which changed the direction of extragalactic astronomy.” The photo above was taken around 1970 while Cyril was visiting Cornell University. (Image credit: David Jauncey)