Commonwealth Scientific and Industrial Research Organisation in the context of Trott Park, South Australia

The Commonwealth Scientific and Industrial Research Organisation (CSIRO)'s radio astronomy observatories are collectively known as the Australia Telescope National Facility (ATNF), with the facility supporting Australia's research in radio astronomy. It is part of CSIRO's business unit known as CSIRO Space and Astronomy.

CSIRO currently operates four observatories as part of the ATNF. Three are in New South Wales near the towns of Parkes, Coonabarabran and Narrabri.The fourth telescope, the next generation Australian Square Kilometre Array Pathfinder (ASKAP) is located at the Murchison Radio-astronomy Observatory in Western Australia. These telescopes can be used together as a long baseline array for use in very long baseline interferometry.

The Australia Telescope Compact Array (ATCA) is a radio telescope operated by CSIRO at the Paul Wild Observatory, twenty five kilometres (16 mi) west of the town of Narrabri in New South Wales, Australia. Its opening ceremony took place on September 2, 1988.

Marshall (Hal) Davidson Hatch AM (born 24 December 1932) was an Australian biochemist and plant physiologist. He was the chief research scientist at the CSIRO Division of Plant Industry in Canberra. He is a Fellow of the Australian Academy of Science, a Fellow of the Royal Society, a Foreign Associate of the US National Academy of Sciences and was awarded Honorary Doctorates from the University of Göttingen and the University of Queensland. In Australia, in 1966, he elucidated, jointly with Charles Roger Slack, the C₄ pathway for the fixation of carbon, which is also sometimes known as the Hatch-Slack pathway. He is now retired.