Science
Eyes of world's longest-living vertebrate show little ageing
Studying the eyes of the Greenland shark may hold keys to curing human eye defects.
Kilos return four times faster after ending weight-loss drugs, study finds
Weight-loss drugs like Ozempic and Wegovy have become immensely popular.
Warning to swimmers as risk of toxic algae intensifies
Temperatures are set to rise, creating perfect conditions in Hawke's Bay for toxic algae to bloom.
Red moon, blue moon, supermoon: What to watch out for in 2026
What will we see in the southern sky in 2026?
Summer stargazing
Turn your attention skywards. With our clear skies and lack of light pollution, Aotearoa has become a top global destination for stargazing. If you find yourself under the stars these holidays… Audio
Doubt cast on potential for life on Jupiter's moon Europa
New research is raising questions about whether Europa has what it takes for habitability.
KFII Ep4: Any Minute Now
The second mating of the 2026 kakapo breeding season has happened, the population drops to 236 birds, why genetics is important in kakapo conservation and over-achievers Flossie and Blades. Audio
Storm chaser captures rare red sprites across Kimberley sky
The eruption of red, luminous sparks is known by meteorologists and weather enthusiasts as red sprites.
Ancient African bedrock reveals the violent beginnings of life on our blue planet
In remote corners of the world, geologists have found tiny relics of Earth's very ancient surface, writes Simon Lamb.
'High alert' as bird flu threat looms for Antarctica
Scientists are racing to record crucial "baseline" population data on wildlife before the deadly H5 strain of bird flu arrives.
RNZ's best videos to watch over summer
Looking for something a bit different to watch this summer break? RNZ has you covered.
Historical mysteries solved by science in 2025
The thought-provoking findings by researchers across the globe offer new ways of understanding the past.
'So cheeky and curious': Kea smarter than cockatoos - study
In the latest competition between New Zealand and Australia, researchers at the University of Vienna found that kea were more capable of surprise than cockatoos.
It's been a big year for the colossal squid
We can't get enough colossal squid action, and it turns out 2025 was a big year for the massive creature. Here to tell us more, is Professor Kat Bolstad - head of the AUT Squid Squad. Audio
NZ Crohn's disease researchers get $2.4 million funding boost
An US charity has funded a New Zealand led research project looking to develop a Covid-style test for Crohn's disease.
How to take science on holiday with you
It's the school holidays, but you know you're really winning with the kids when they take an active interest in a subject outside the classroom. Morgan McKeen is a science technology engineering and… Audio
New way to extract nitrates from wastewater found
Nitrates have to be removed before the treated water can be discharged into the environment.
Wheelchair user flies into space in world first
An aerospace and mechatronics engineer at the European Space Agency has crossed the Karman line.
Sound could help protect our native birds from cats
A new research project is exploring the use of sound to protect native birds from both feral and domestic cats.
Does fasting make you cognitively impaired?
Intermittent fasting has become a popular diet trend in the last decade, but many people feel that skipping meals makes it harder to concentrate. Audio
