Virtual rioters predict how crowds move
See a new simulation of group behaviour that could help with disaster relief
Columbine flower shows off flowing tails
Columbines evolved a spectacular variety of petal shapes to attract different species of birds and bees
Strange domes on Europa formed on thin ice
Curious features on Jupiter's icy moon Europa show where liquid water once appeared close to the surface, making them intriguing targets for alien hunters
Atoms find quantum solace in the deep chill of space
Quantum oddities could help explain how chemical reactions get started in the freezing near-vacuum of interstellar space
Liquid could power and cool mobile supercomputers
A brain-based design for microchips that are both cooled and powered by fluid could one day put a supercomputer in your pocket
Biosensor can monitor your heartbeat from a distance
A new type of sensor can track movement not only in heart muscles, but also muscles in the lungs, limbs and eyes
What does a chair leg sound like?
Listen to the sound of a lathe and marvel at a toaster-sized earthquake at an exhibition that crosses the boundaries between senses
Skeleton of ancient human relative may yield skin
As London's Natural History Museum takes delivery of two replica fossils, palaeontologists hint that they have mummified skin
Card trick reveals the subconscious mind is on watch
A simple card game reveals how much visual information we take in unawares, suggesting how gut instinct works
Canada's tar sands pipeline faces further delay
Fears of leaks prompt US government to launch environmental review of Keystone XL pipeline route through Nebraska's sand hills
El Naschie questions journalist in Nature libel trial
In the libel case brought against the scientific journal Nature, independent physicist Mohamed El Naschie has spoken for the first time
Software to investigate cybercrime's social side
Social networks are the next stop in the search for clues to offline crime such as burglary
New power plants and factories lock us into hot future
It may seem obvious, but negotiating cuts in emissions while building fossil-fuel power stations just won't work
Australia's abused asylum seekers paid multi-millions
The Australian government has paid asylum seekers A$23 million to compensate for unlawful detention or psychological and physical injury
Squishybots: Soft, bendy and smarter than ever
A new era of flexible robots has arrived, and it challenges our notions of what it means to be intelligent, says Justin Mullins
How I find the truth about sex
Anne Johnson, founder of the UK's National Survey of Sexual Attitudes and Lifestyles, explains the best way to find the truth about our intimate secrets
San Francisco's huge new quake-proof bridge
The new bridge across San Francisco bay, the largest of its kind ever built, must be able to sway to withstand a big earthquake - and one is expected soon
Supreme Court case shows confusion over GPS tracking
The tracking of suspects by police is being pitted against civil liberties in the US Supreme Court and the outcome is far from obvious
Just how much meat can eco-citizens eat?
We all know we need to eat less meat - here are the hard numbers
Mega-rover ready to hunt for life signs on Mars
Plutonium powered and as big as an SUV, NASA's Curiosity rover is crammed with souped-up sensors and a new sky-crane landing system. Maggie McKee reports
Microscopic scales weigh up cancer therapies
Tiny scales that can measure the weight of single cells could help doctors to find the best treatment for individual tumours
Sensor-laden dragonfly may help future robots soar
A microchip that weighs less than a postage stamp takes a ride on a dragonfly and sends back data from the insect's neurons
Stalled Phobos probe may fall to Earth in January
A Russian spacecraft meant to visit Mars's moon Phobos has been stranded in Earth orbit since 8 November - it may re-enter the atmosphere carrying toxic fuel
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