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The Separation Tree in the Royal Botanic Gardens, Melbourne, marking where Victoria’s separation from New South Wales was celebrated in 1850, is dead after two attacks by vandals. Gregory Moore

Acts of arborial violence: tree vandals deprive us all

Tree vandals after better sea views or with political goals deprive everyone of the benefits trees provide. Despite costing local councils thousands in replacement trees, they are rarely caught.
Desk-based office workers should spend at least two hours of their working day standing or moving. Tim Caynes/Flickr

Office workers, stand up from your desk for two hours a day

We’ve known for some time that too much sitting increases your risk of diabetes and heart disease. But until now it’s been unclear how much standing during the work day may counter this risk.
Bill Shorten has introduced a bill into parliament to amend the Marriage Act and allow same-sex marriage in Australia. AAP/Mick Tsikas

Explainer: how Australia can legalise same-sex marriage

The legislative reform required to allow same-sex marriage is not complicated. There is relative consensus as to how this can be achieved.
Immediate tax deductions for small business are designed to boost investment and confidence. AAP.Julian Smith

Why the small business tax break could pay for itself

The small business package allowing firms to depreciate up to $20,000 of assets comes with a hefty upfront cost - but the government collects later.
The main strategy of Modi’s economic advisers in the first year has been to treat the Indian economy as the proverbial elephant in the room. Xing Zhe CHINA OUT/EPA/AAP

No, India isn’t outpacing China, and other Modi myths

Mindful of the short attention span of voters, Modi’s economic advisers have been careful to avoid selling economic policy as the answer to India’s problems.
Sacks’ works have introduced readers to the marvellous complexities of the mind. Mars Hill Church Seattle/Flickr

Celebrating Oliver Sacks’ romantic science and a life now ending

The popular neurologist revealed earlier this year that he only has months to live – a statement which casts his recently-released memoir, On the Move: A Life, in a new light.
Offshore oil is not just a risk to the environment – if the world gets serious about mitigating climate change, these resources risk becoming stranded assets. Green Fire Productions/Flickr

Big oil’s offshore scramble is risky business all round

Big oil companies are moving to exploit new resources such as the Arctic or the Great Australian Bight. But are they worth the risk?
Giant balloons can take scientific equipment to the edge of space much cheaper that satellites. Ravi Sood

The rise and fall of giant balloons on the edge of space

Giant balloons are a lot cheaper than rockets launchers in getting scientific equipment to the edge of space. But they don’t always fly to plan.
Universities will need to make some significant adjustments to meet the government’s targets in boosting the commercialisation of research. shutterstock

Boosting commercialisation of research poses a big challenge for universities

The government has proposed changes to how Australia’s publicly funded research agencies are supported and how their performance is managed to boost the commercialisation of research.
The answer is a resounding no – brains are more sophisticated than that. Dmitry Kirsanov/Flickr

Health Check: can your brain be ‘full’?

The brain is truly a marvel. A seemingly endless library, whose shelves house our most precious memories as well as our lifetime’s knowledge. But is there a point where it reaches capacity?
Joko Widodo is surrounded by politicians and military generals with agendas that are unlikely to help the Papuans. EPA/Mast Irham

Papuans and Jokowi are hostage to Indonesian politics

The future of Papuans remains subject to the swirling mists of Indonesian national and international political intrigue.