Today on New Scientist: 4 April 2013

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3D-printed membrane mimics movements of living tissue

Watch an artificial material made up of tiny droplets fold up like living tissue

Meteorites could have been source of life's batteries

Dissolved in volcanic ponds, meteorites could have provided early life with the chemicals it needed to store energy

Leap Motion hacks show what 3D gesture sensing can do

Gamers, designers and photographers have innovative treats in store when the Leap Motion 3D gesture-sensing computer interface is launched next month

First turtle genome shows beauty more than shell-deep

The genome of one of the most abundant turtles on Earth gives clues to their longevity and ability to survive without oxygen during hibernation

Zeitgeist Borders shows a world of Google searches

Regional differences in how Google autocompletes search queries reveals what users are searching for around the world

Time for economics to shed its fanciful past

Make way for the physicists! Economics is finally becoming an enlightened science, say new books by Mark Buchanan and James Owen Weatherall

What we exhale is unique to us - our 'breathprint'

Everyone's breath contains a distinctive set of metabolic compounds, so breath tests could be used to detect and monitor disease

North Korea nuclear threats: how worried should we be?

Pyongyang says it will reopen a facility used to make weapons-grade plutonium and that US aggression will be countered with nuclear weapons

Black hole firewall: Trouble on the edge

The problem that Stephen Hawking spotted around black holes has made a fiery return. Anil Ananthaswamy reports on how it threatens quantum theory and gravity

Powder women's eggs for home storage

If a freeze-drying method showing promise with cow eggs works for human ones, women need only add water and sperm to produce an implantable embryo

It's time we sorted out climate 'blips'

The promise to fill the gap between short-term weather forecasts and long-term climate predictions is still unfulfilled. Let's change that

It's too early to herald a US nuclear renaissance

Obama's financial backing for nuclear power must be reinforced by tougher economic incentives and better technology

Dark matter MRI could boost hunt for hidden particle

An experiment that exploits the same underlying physics as medical scanners could help detect a super-elusive dark matter candidate, the axion

Interspecies telepathy: human thoughts make rat move

By linking the technologies of two brain/computer interfaces, human volunteers are able to exert limited control over a rodent's movement

US starts building first nuclear reactors in 30 years

After a three-decade hiatus, work is finally under way on a new wave of reactors thanks to government funding - but China is already way ahead

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