Nearly 100,000 people die every year from bugs that they pick up in health care facilities; experts say most of these infections are preventable
The new book Red Moon Rising chronicles the early days of the Russian-American space race
How realistic are images of planets around other stars—and should they be? CLICK HERE FOR AN IMAGE GALLERY
Although sound cannot be heard in space, it can sometimes be seen
A myth as durable as gum itself holds that the chewy confection sticks to your innards like it does to the bottom of a desk
This week's clue:
Site for Mendel's heredity experiments
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- Free preview. Full coverage is available at Scientific American Digital
SPECIAL REPORT
Countries are altering their nuclear arsenals, prompting the U.S. to refurbish its own warheads
COSMOLOGY
Could cosmic inflation be a sign that our universe is embedded in a far vaster realm
SPECIAL REPORT
A look at strike capabilities worldwide, and how a bomb would affect single cities and people.
HUMANITARIAN RELIEF
The Science of Doing Good
Information technology, satellite imaging and research carried out in disaster-relief areas have begun to transform humanitarian aid into a more efficient and less haphazard endeavor
The Science of Doing Good
Information technology, satellite imaging and research carried out in disaster-relief areas have begun to transform humanitarian aid into a more efficient and less haphazard endeavor
INFORMATION TECHNOLOGY
Brilliant Displays
A new technology that mimics the way nature gives bright color to butterfly wings can make cell phone displays clearly legible, even in the sun's glare
Brilliant Displays
A new technology that mimics the way nature gives bright color to butterfly wings can make cell phone displays clearly legible, even in the sun's glare
MEDICINE
Playing Defense Against Lou Gehrig's Disease
Researchers have proposed potential therapies for a paralyzing disorder once thought to be untreatable
Playing Defense Against Lou Gehrig's Disease
Researchers have proposed potential therapies for a paralyzing disorder once thought to be untreatable
SPECIAL REPORT
A Need for New Warheads?
The U.S. government's proposal to build the first new nuclear warhead in two decades raises a host of questions
A Need for New Warheads?
The U.S. government's proposal to build the first new nuclear warhead in two decades raises a host of questions
BIOLOGY
Cell Defenses and the Sunshine Vitamin
Scientists now recognize that vitamin D does much more than build strong bones and that many people are not getting enough of it. Is widespread D deficiency contributing to major illnesses?
Cell Defenses and the Sunshine Vitamin
Scientists now recognize that vitamin D does much more than build strong bones and that many people are not getting enough of it. Is widespread D deficiency contributing to major illnesses?
Dark Riddles
Behavior of galaxy cluster may shift thinking about gravity
Repairs without Rivets
Carbon-fiber composites could lead to quick fixes for old bridges
A Simple Mimic
Water droplets encased in fat simulate cell membranes
Higher Power
Earth's heat keeps continents afloat and land above sea level
Rotor in Motor
Replacing aluminum with copper in electric motors saves energy
Scared Off Silicone
Liability fears trump science for ulcer-beating injectable silicone
A study finds that biology strongly governs voter turnout
Cosmic Radiation -- Smoking and Genes -- Shrubs 1, Grasses 0 -- Corona Heat
In the 1960s Marshall W. Nirenberg deciphered the genetic code, the combination of the A, T, G and C nucleotides that specify amino acids. So why do people think that Francis Crick did it?
The U.S. needs a new defense strategy, not new nuclear warheads
How the curious science of the oddities of everyday life yields new insights
Some may cry about cleaning up spilled milk
Even the Bush administration has started to recognize U.S. legal obligations to fight global warming
Even the Bush administration has started to recognize U.S. legal obligations to fight global warming
Devoting all the funding to just one mission would be a mistake
