Standard IVF is fine for most people. So why are so many offered an expensive injection they don't need?
The more expensive IVF technique offers no extra benefits in the vast majority of cases.
The more expensive IVF technique offers no extra benefits in the vast majority of cases.
Ever wonder what it would feel like to hide away in a dark cave for 40 days?
It is feared the Indian variant contains mutations which could bypass immunity.
It can cost millions to protect Kiwi ingenuity from global theft. Is it worth it?
So far, Pfizer's trial indicates its vaccine is highly effective for at least six months.
Control centre for methane-tracking satellite to be hosted by university space institute.
It's the biggest question facing infectious disease researchers, but impossible to answer.
Tiny blades of grass capture the CO2-slashing effect of last year's Covid-19 lockdown.
Scientists analyse 10,000 blood samples and find there was limited undiagnosed infection.
The probability of NZ's big-risk Alpine Fault rupturing before 2068 just got much higher.
On the icy night that 1526 souls were lost at sea, "the stars seemed really to be alive".
Why do some Kiwis still refuse to get Covid-19 tests, wear masks or stay home when sick?
Psilocybin is flavour of the month in mental health - but not everyone's convinced.
Iwi owned business takes out national food competition. Made with funding from NZ On Air.
Looking for a needle in a haystack? Or a cat on a pest free island? Send in the hounds!
After eight years of hunting feral cats in the bush, Milo the conservation dog is retiring this month. Video / Michael Craig
The rise of conspiracy has led to shift from the 'single source of truth'.
'From an entertainment and activities aspect, the show's bigger than we've ever had.'
By focusing too much on ourselves, do we risk shifting the blame from big polluters?
Agriculture groups say Climate Change Commission too optimistic on potential for cuts.
Climate change is bringing more floods, storms and heatwaves. Are communities prepared?
The climate crisis is ostensibly a big polluter problem. But does population size matter?
One of NZ's biggest emissions jumps have come from cars. How do we get people out of them?
Amid rising transport emissions, one prominent professor showed us how we could change.
"We did spare a thought for Sir Ed (Hillary) as we descended..the height of Everest."
A talented team of researchers win NZ's top science prize for their crucial Covid-19 work.
James Shaw says "urgent action" needed to arrest emissions that again saw an annual jump.
Forestry is a crucial part of NZ's climate policy mix. How do we ensure we get it right?
If all of us moved to climate-friendly diets, what difference would it make to emissions?
On a per capita basis, New Zealand has an embarrassingly large carbon footprint. Video / NZ Herald