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Lake Taupo, in the North Island of New Zealand, is a globally significant caldera of a supervolcano that formed following a massive eruption more than 20,000 years ago. from www.shutterstock.com

Explosive lies: how volcanoes can lie about their age, and what it means for us

New research shows that carbon dioxide in groundwater can affect the aging of volcanic eruptions. The findings could help predict future eruptions.
A memorial by sculptor Margriet Windhausen depicts the life-size figures of Kate Sheppard and other leaders of the Aotearoa New Zealand suffrage movement. Bernard Spragg/Wikimedia Commons

Why New Zealand was the first country where women won the right to vote

125 years ago today women in New Zealand were the first to win the right to vote. Why did this global first happen in a small and isolated corner of the South Pacific?
New Zealand researchers have found that the active ingredients in commonly-used weed killers like Round-up and Kamba can cause bacteria to become less susceptible to antibiotics. from www.shutterstock.com

New research suggests common herbicides are linked to antibiotic resistance

Improper use of antibiotics is one reason for the rise in antibiotic resistance, but new research shows that ingredients in common weed killers can also cause bacteria to become less susceptible.
Robots are currently used by police for bomb disposal. Future versions will be much more sophisticated. Nigel Roddis/AAP

Three ways robots can save lives in war

Robots are a twin-edged sword. Used badly, they may one day perpetrate genocide and war crimes. Used well, they can prevent them.
Crewed submarines like the HMAS Rankin might become a thing of the past. United States Navy, Photographer's Mate 1st Class David A. Levy

Could robot submarines replace the ageing Collins class?

Autonomous submarines might do for naval warfare what drones are doing for air warfare. So should Australia consider autonomous subs as a replacement for the Collins class?

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