The Murchison Widefield Array

A multi-million dollar international low-frequency telescope in Australia's Midwest.

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The Telescope

The Murchison Widefield Array (MWA) is a low-frequency radio telescope operating between 70 and 300 MHz. It is located at the Murchison Radio-astronomy Observatory (MRO) in Western Australia, the planned site of the future Square Kilometre Array (SKA) lowband telescope, and is one of four telescopes designated as a precursor instrument for the SKA. The MWA has been developed by an international collaboration, including partners from Australia, New Zealand, Japan, China, Canada and the United States.

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"The MWA will sustain the ambitions of young scientists and engineers from around the world for the next decade at least, providing the essential training ground to develop future leaders for the SKA.

However, the best spin-offs will be the growth in human capacity and abilities. The MWA and SKA excites young people about careers in science, engineering and technology. From this, we can cultivate skillsets for the global knowledge economy of the future."


Professor Melanie Johnston-Hollitt, MWA Director

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The Science

The MWA is performing large surveys of the entire Southern Hemisphere sky and acquiring deep observations on targeted regions. It enables astronomers to pursue four key science objectives. The primary endeavor is the hunt for intergalactic hydrogen gas that surrounded early galaxies during the cosmological epoch of reionization. The MWA will also provide new insights into our Milky Way galaxy and its magnetic field, pulsing and exploding stellar objects, and the science of space weather that connects our Sun to the environment here on Earth.

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Image: Animation showing the giant radio galaxy Fornax A in false color, comparing data from the MWA Phase I and Phase II configurations. Credit: Dr Ben McKinley (Curtin University, ARC DECRA Fellow)

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