News
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ChemistryLeaden news for city neighborhoods
Researchers have identified more than 400 urban sites that may be highly contaminated with lead but had remained unknown to authorities for decades.
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ChemistryWould you like wheat with that burger?
Researchers have used wheat to make a biodegradable hamburger carton.
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Gene therapy won’t replace Viagra—yet
Scientists are making progress toward inserting genes to cure impotence temporarily.
By Janet Raloff -
Looking for osteoporosis in spit
A dentist has found three compounds in saliva that could be used to gauge bone loss.
By Janet Raloff -
AstronomySearching for a lost craft
A recent Department of Defense analysis of images of the Red Planet may have located a lost spacecraft on Mars, but NASA says the images could just be electronic noise.