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The Panama Papers was the biggest-ever collaboration for investigative journalism, involving 400 journalists in 80 countries who collectively produced 6,000 stories in 100 different media outlets. Shutterstock

Media Files: investigative journalist Bastian Obermayer, who led the Panama Papers tax exposé

Media Files: investigative journalist Bastian Obermayer, who led the Panama Papers tax exposé The Conversation, CC BY80.6 MB (download)
Today we meet Bastian Obermayer, the Pulitizer prize-winning journalist who led the Panama Papers investigation into global tax evasion.
Siouxsie Sioux in Edinburgh in 1980: a Goth pioneer she was a big influence on the tribe known as Goth in steamy Brisbane. Wikimedia Commons

It’s hot in here: the evolution of Goth subculture in sub-tropical Brisbane

Lakes of kohl in danger of smudging in the humidity. Black clothes soaking up the sun. It took commitment to be a Goth in 80s Brisbane - here are some of the influences that shaped the scene.
This week’s attack on Saudi oil facilities appears to be the latest effort by Iran to escalate tensions in the Persian Gulf to push back on the US ‘maximum pressure’ sanctions campaign. Pavel Golovkin/EPA

How likely is conflict between the US and Iran?

Iran’s goal is to sow discord and inflict pain on energy markets, while avoiding crossing a threshold that prompts retaliation from the US. This is a fine line to walk at the best of times.
A researcher completing bleaching surveys in the southern Great Barrier Reef after a major bleaching event. ARC CENTRE OF EXCELLENCE FOR CORAL REEF STUDIES

‘This situation brings me to despair’: two reef scientists share their climate grief

Few feel the pain of the Great Barrier Reef’s decline more acutely than the scientists trying to save it. Ahead of a UN climate summit, two researchers write of their grief, and hope.
3D mammograms may be useful in investigating abnormalities, but as a means of routine screening, they may do more harm than good. From shutterstock.com

For routine breast screening, you may not need a 3D mammogram

3D mammography is becoming more widely available, but is it superior to the traditional 2D technology for breast cancer detection? The answer isn’t clear-cut.
With more than 80% of Singaporeans living in state-provided housing, the city rates well for affordability compared to Sydney, where the figure is just 5.5%. Bill Roque/Shutterstock

Affordable housing lessons from Sydney, Hong Kong and Singapore: 3 keys to getting the policy mix right

A coordinated mix of policies does more to keep housing affordable for a significant proportion of a city’s residents than the unbalanced approach we see in Sydney.
After winning the right to vote in 1893, New Zealand’s suffragists kept up the battle, but the unity found in rallying around the major cause had receded. Jim Henderson/Wikimedia Commons

NZ was first to grant women the vote in 1893, but then took 26 years to let them stand for parliament

New Zealand was the first nation to grant women the vote in 1893, but during the pre-war years enduring prejudice against women in politics outweighed any support for women to stand for parliament
John Setka is battling attacks from all sides after union meeting recording leaks. AAP Image/Julian Smith

View from The Hill: Now the senators are taking on John Setka

Rogue construction union boss John Setka is already in fights with the Labor party and the ACTU leadership. Now he faces a battle with parliament. Centre Alliance senator Rex Patrick is moving to refer…
The ISS is a collaboration between the space agencies of Canada, Russia, Japan, Europe and the United States. www.shuttershock.com

Curious Kids: How big is the International Space Station?

The International Space Station is the biggest human made structure in space and the third brightest object in the sky. But the living conditions for the six astronauts on it are quite cramped.
Since the industrial revolution began in the mid-1700s, atmospheric carbon dioxide concentrations have gone up by 46%. from www.shutterstock.com

Climate explained: why we won’t be heading into an ice age any time soon

For the past two and a half million years, Earth has experienced regular ice ages, but with carbon dioxide levels now over 400 parts per million, the next ice age is postponed for a very long time.
Different countries take different approaches to get parents to vaccinate their children. But saying which one works best is difficult. from www.shutterstock.com

How other countries get parents to vaccinate their kids (and what Australia can learn)

In some countries, parents are fined if they don’t vaccinate their child or they have to go on a course before being granted an exemption to vaccinate. Are any of these options right for Australia?