CSIRO operates several world-class radio telescopes that are used by its own astronomers and other astronomers from around Australia and all over the world.

CSIRO is building the Australian Square Kilometre Array Pathfinder telescope in Western Australia – a next-generation telescope, and a technology testbed for the giant international Square Kilometre Array telescope. We also manage the Murchison Radio-astronomy Observatory, where the Square Kilometre Array telescope infrastructure in Australia is to be centred.

CSIRO also supports activities in space science and Earth observation, and operates the Canberra Deep Space Communication Complex (a spacecraft tracking station) on behalf of NASA.