Opinion

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Before choosing the more costly in-patient option for rehabilitation after knee replacement surgery, consider out-patient rehab, which delivers results just as quickly, Justine Naylor writes.

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Buried ice on Mars could be a water source for interplanetary visits of the future, write Sophia Casanova, Andrew Dempster and Serkan Saydam. 

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Large numbers of people and households would not be prepared or adequately supported in the event of a financial shock, finds a new report from Kristy Muir and Axelle Marjolin.

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Andrew Lynch writes the release of much-awaited papers from the parliamentary archives will lead to new appraisals of Lionel Murphy's life and work – including his alleged "misbehaviour".

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A trade dispute between Australia and Indonesia shines a spotlight on Australia's controversial anti-dumping practices at the World Trade Organisation, writes Weihuan Zhou.

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Cities and their residents’ needs in public space have changed, but the type and function of the furniture are stuck in the past, writes Christian Tietz.

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Recent criticisms of Cloud Arch attack the design yet are founded on a culturally entrenched, mean-spirited attitude to public art, writes Felicity Fenner.

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New research has prompted warnings that melting Antarctic ice can trigger effects on the other side of the globe. 

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Official explanations that blame terrorism for the conflict in Myanmar's northern Rakhine State should not be accepted at face value, writes Melissa Crouch.

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Warnings from almost 40 years ago about the perils of detaining asylum seekers have proved prescient, writes Claire Higgins.

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