Scientists have made unexpected discoveries about Antarctica's best-known residents.

Melting glacial ice sheets make the ocean's surface layer less salty and more buoyant.

Want your April Fool's Day fix? Here's some of the best since way back.

Ridgway Lythgoe's slides and photos - especially those of Antarctica - are being appraised

Scientists film spectacular underwater action of the huge mammals beneath the sea ice.

Kiwi scientists return from Antarctica with important new climate-change insights.

The selfie-snapping animals are at it again.

Strange snow markings on Erebus not linked to plane crash

Arctic temperatures are warmer than ever recorded in February.

Mt Erebus victim's children question how many families Air NZ told about new safety video.

NZ is being urged to help create the largest protected area on the planet.

Niwa has released new photos revealing an abundance of life in the freezing waters beneath Antarctica’s ice.

New photos reveal an abundance of life in the freezing waters beneath Antarctica's ice.

Ten years after his death, Ed Hillary's legacy lives on strongly

International scientific research ship JOIDES Resolution tackles Zealandia missions.

NZ-led expedition investigates how warming oceans could erode huge ice sheet.

Planets that were not even considered candidates to host alien life may be reanalysed.

"Soul-crushing" footage has emerged of a starving wild polar bear searching for food.

Families want a national Mt Erebus disaster memorial built before 2019's 40th anniversary.

A dramatic change in sea ice could hamper a major NZ scientific expedition in Antarctica.

A horrific breeding season left a penguin colony strewn with dead babies.

Unusually warm weather affected Scott and Amundsen's race to the South Pole, study finds.

Scientists will model the risks of a future "super-eruption" in a new $8.2 million study.

Mountain ranges on Pluto have been formally named after Sir Ed Hillary and Tenzing Norgay.

Hidden beneath the frozen surface of Antarctica lie warm caves that could harbour life.

Kiwi scientists have helped unlock frozen secrets that change what we know about methane.

A buoy measuring waves in the southern ocean has gone rogue and headed on a new journey.

A Kiwi Antarctic scientist discusses the break-off of a trillion-tonne iceberg.

Iceberg will be among largest ever seen, containing about 1 trillion tonnes of ice.

Climate change could help native species but also allow invasive species to gain foothold.