In the chemistry of life, left-handed amino acids are the rule. Why does nature make so many exceptions?
Assembled in Code
Digital simulations have become so powerful that companies send their products through the wringer—sometimes literally—before ever building a prototype
To Print the Impossible
Will 3-D printing transform conventional manufacturing?
Seeds of Dementia
A chain reaction of toxic proteins may help explain Alzheimer's, Parkinson's and other killers—an insight that could lead to desperately needed new treatment options
Rise of the Nano Machines
Scientists are building the next generation of atomic-scale devices
Mars in Motion
The surface of Mars changes all the time. Is flowing water one of the causes?
Seven next-generation materials promise to change the way the world is made
How Kitty is Killing the Dolphins
The pathogens of land animals are spreading to the oceans, threatening otters, seals, whales, coral and other sea creatures
My Boss the Robot
Humans and robots will work elbow to elbow on the shop floor, but you'll be surprised by who's giving the orders
DNA analyses find that early Homo sapiens mated with other human species and hint that such interbreeding played a key role in the triumph of our kind
Manufacturing is Order, Intelligently Applied
Introduction to a special report on 3-D printing, nano materials, atomic machines and more