Testing the toxicity of dozens of nanoparticles en masse may offer a faster track to medical applications.

The virtual world of Second Life offers new ways to do and learn about real science.

The work of Alexandre Grothendieck has transformed math the way the Internet has transformed communication: Once you’re used to it, you can’t imagine what life was like before it.

Perchlorate is not yet a household word in many parts of the country. But it may becomes one if Sen. Barbara Boxer has her way. Perchlorate – an ingredient in solid rocket fuel, fireworks, flares and explosives – taints drinking-water supplies around the nation, not to mention plenty of foods. In animal tests, the pollutant perturbs thyroid-hormone signaling. If such hormonal messages are muted or garbled in the womb or shortly after birth, an animal may suffer developmental – even cognitive – retardation. So one might think that U.S. regulatory agencies would have set maximum allo...

Researchers have shown that a grip that’s too tight can be counterproductive, especially on a microscopic object — but the findings could apply to fields ranging from ecology to sociology.

With Uncle Sam pushing the production of ethanol for fuel, U.S. farmers are planting more corn than at any time since World War II, and garnering premium prices for each harvested bushel. But many livestock operations are getting hit with a double whammy: higher feeds costs and corn-derived feed that’s carrying triple the normal load of fungal poisons.

This year's Abel Prize goes to mathematicians involved in group theory.