World Health Organization wants to know how happy we are
The WHO has traditionally collected information on death, disease and disability – now it wants to measure our well-being too
Gravitational-wave detector rebooted to sense clashing stars
The revamped Laser Interferometer Gravitational-Wave Observatory (LIGO) has taken its first science data - a step towards finding ripples in space-time
Volkswagen scandal: How on-road tests will beat emissions cheats
The move to tougher emissions testing should make it harder for vehicle manufacturers to game the system
Drought-hit California burns while waiting for El Niño rains
Large wildfires burning across the western US have killed six people and destroyed over a thousand homes in California
World set to embark on UN sustainable goals to eradicate poverty
At a summit in New York this week, world leaders are expected to approve a set of goals and targets linked to sustainable and equitable development
Humans walk around in our own personal cloud of airborne bugs
Your body's unique combination of bacteria species is detectable from at least a metre away, and includes bugs from some of our most intimate places
Oldest salmon bones hint how Stone Age migration was fuelled
The discovery of fish bones in a hearth in Alaska suggests that salmon helped fuel the migration of Stone Age people from Asia into North America
Buttonmasher: The world simulators that let you practise reality
A new breed of video games act like giant simulators that force players to collaborate or perish
Forget the Turing test – there are better ways of judging AI
When Jacob Aron helped judge an artificial intelligence contest, the entrants did not interview well. Better to judge face recognition or even poker skills
Clumps of gold nanoparticles can evolve to carry out computing
Fast, efficient, brain-like computers may be a step closer now that a Darwinian technique has coaxed a heap of nanoparticles to act as logic gates
