The liquefaction that swamped Christchurch East streets with tonnes of silt and sludge has become one of the most enduring images of the city's earthquakes.

Well, it was only a matter of time ... but yes, I'm pleased to announce there's been another sighting of the Agogwe in Africa.

It is a scenario that could have emerged from the imagination of a science fiction writer - killing machines stalking battlefields with heat-seeking weapons so human soldiers do not have to risk their lives.

A new study suggests the number of dolphins being captured and killed in commercial trawling nets could dive if vessels changed their fishing methods.

The priorities are clearly badly wrong, writes Bryan Walker. NZ needs to turn its back on a prosperity resulting in severe threats to the human future and build an economy which flourishes on green energy sources.

Data from nuclear bomb testing helped New Zealand scientists pinpoint the age of a skeleton found in Australia, leading to a decades-old cold case being reopened.

Several aspects of Jim Salinger's op-ed "Climate hurtling towards a hothouse Earth" (Herald 24/5/13) are quite misleading.

Making plastic out of dead animals might seem slightly gruesome but it could turn out to be a real money-spinner for one Kiwi start-up.

The Prime Minister's chief science adviser says a hitlist of 10 big issues for our top brains to tackle will be "transformational", despite criticism that they lack imagination.

Parasites that live inside humans could find life a bit tougher in future, thanks to the University of Otago and the Bill & Melinda Gates Foundation.

Packing winds of up to 320km, the killer tornado that laid waste to Oklahoma on Monday grasped at the deadliest end of the Enhanced Fujita scale.

Editorial: Science has been a black hole for taxpayers' money. Governments of all stripes agree that science is something they should fund without knowing very much about it.

The first time I met palaeontologist Dan Fisher was in a hotel in the Arctic frontier town of Salekhard, in Siberia.

The National Science Challenges promised to be one of the most exciting experiments ever seen in our science and innovation sector.

Copper coins and a 70-year-old map with an "x" may lead to a discovery that could rewrite Australia's history.

A Canterbury astrophysicist will fly to Europe next week to be presented with the Einstein Medal from the Albert Einstein Society.

Sir Ray Avery's Vigil Monitoring - which is developing a wristband that monitors a patient's vitals and uploads the information - has received funding to help get the invention to market.

Very few people will ever have the chance to see NZ 370km from space, but thanks to two astronauts returning to Earth today Kiwis won't have to make the journey.

A Soyuz space capsule carrying a three-man international crew has landed safely on the steppes of Kazakhstan.

Canadian astronaut Chris Hadfield and Nasa’s Thomas Marshburn have become well known for their amazing photos of planet earth, regularly tweeted out to their thousands of fans. Here are 10 of the best.

The Natural History Museum has about 300 experts on its staff.

Scientists have uncovered what, for some couples, may be an uncomfortable truth: all people of European descent are related.

Sherry Turkle shows up begging for a latte. She's left her wallet in her hotel room. She's exhausted, she says, and could do with a coffee.

Some stroke victims may eventually recover lost hand function thanks to smart new computer system designed to fool the brain.

A self-proclaimed "physics nerd" from Burnside High School is heading to Nasa after winning a scholarship to space camp.

Senior scientists have criticised the "appalling irresponsibility" of researchers in China who have deliberately created new strains of influenza virus in a veterinary laboratory.

It weighs just 80 milligrams, has a pair of wings that flap 120 times a second and has taken 10 years to develop.