Carbon dioxide emissions are making the oceans more acidic, imperiling the growth and reproduction of species from plankton to squid
Shortly after Homo sapiens arose harsh climate conditions nearly extinguished our species. Recent finds suggest that the small population that gave rise to all humans alive today survived by exploiting a unique combination of resources along the southern coast of Africa...
The night skies are littered with distant planets, but what are they really like? Theoretical models suggest that a surprising number of "exoplanets" could be similar to Earth—and may even support life...
A voyage through the human body is no longer mere fantasy. Tiny devices may soon perform surgery, administer drugs and help diagnose disease
Sometimes we forget where a story really starts. Are electric cars new? Where did malaria start? Who invented spaghetti? Read on, for the surprising origins of many strange and familiar things...
As if software viruses weren't bad enough, the microchips that power every aspect of our digital world are vulnerable to tampering in the factory. The consequences could be dire
Small remnants of toys, bottles and packaging persist in the ocean, harming marine life and possibly even us
What persuaded the male hominid to stick around after mating?
Swiss dairy farmers created an American institution
The first computer virus spawned an arms race in software
The inspiration for today's animated pictures began long ago with dreams and toys
Scientists have traced malaria to its first human victims a mere 10,000 years ago
Most living things do it, but nobody knows why
The ancient Chinese invented fireworks to scare off 10-foot-tall mountain men
The invention of barbed wire was a huge commercial success--and the subject of furious legal battles
A rise in maternity ward deaths led one physician to discover the importance of hand washing
Packed living conditions made the influenza virus a leading public health threat
A century ago taxicabs had batteries, not gas guzzlers, under their hoods
A sense of right and wrong starts with innate brain circuitry
The first black holes are almost as old as the universe itself
Wheeled vehicles may have first arisen as a tool of war
It took thousands of years to go from mush to spaghetti
Biodiversity was the first step toward complex life
How nothing became something
Picture this: a movie revealing the inner workings of a cell or showing a nanomachine in action. A new microscopy is making such imaging possible
- From the Editor