ARC Centre of Excellence for All-Sky Astrophysics (or CAASTRO) was a collaboration of international astronomers dedicated to wide field astronomy.
CAASTRO aimed to be an international leader in wide-field astronomy.
It was funded by the Australian Research Council, by the NSW Government and by the member organisations.
CAASTRO's founding Director was Professor Bryan Gaensler.
He was succeeded by Professor Elaine Sadler from The University of Sydney in September 2014.