June 13, 1998 | Volume 153 | Number 24Cover: A cluster of soap bubbles provides one way to visualize the microstructure of space on distance scales much smaller than the diameter of a proton. Such a picture emerges from recent efforts to determine the relationship between gravitation, general relativity, and quantum mechanics.
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News of the Week:Infant Deaths Linked to Odd Heartbeat
A study of more than 33,000 Italian babies finds a link between sudden infant death syndrome and a heartbeat abnormality called long QT syndrome.
New bird species found in surprising place
In a well-studied Ecuadorean forest, ornithologists have discovered a previously undetected bird.
European crab leaps to Pacific prominence
The voracious European green crab, recently introduced to West Coast waters, is rapidly spreading northward, threatening coastal shellfish.
Quick screening yields better catalysts
Using an ink-jet printer to lay down daubs of different metal mixtures allows researchers to more rapidly find improved materials for fuel cells.
Ghostlike particles carry a little weight
Capping 40 years of research into one of physics' most elusive particles, a research team has presented strong evidence that neutrinos possess mass.
High-tech images shrink fossil braincase
A computerized imaging analysis of an ancient hominid skull substantially lowered its estimated volume, raising questions about the cranial capacity of other early hominids.
Genome sequence aids on war on tuberculosis
Scientists unveil the complete DNA sequence of the tuberculosis bacterium's more than 4,000 genes.
Ambitious sky survey gets under way
A 30-foot-long image of the heavens represents only a small fraction of the first detailed picture produced by the Sloan Digital Sky Survey.
BiologyShes no help, but shes our mom
French scientists say they have the first evidence that youngsters of a species with no parental contact can still recognize their mothers.
Change one gene, plants get healthier
Souping up the gene NPR1 may give plants extra resistance against a broad range of disease organisms.
Why do guys carry eggs on their backs?
Tests of golden egg bugs show no evidence supporting the idea that females prefer males carrying a lot of eggs.
From a meeting in Atlanta of the American Society for Microbiology
Certain strains of bioluminescent bacteria dim in response to toxic pollutants.
Mutant microbes could work for EPA
Bacteria that eat phenols may be used to detect pollutants.
GeologyLife at its lowest
Japanese scientists find few surprises in samples of bacteria and fungi from the deepest spot in the ocean.
A quest for Earths core
Physicists are developing laboratory models that mimic the production of Earths magnetic field.
BiomedicineVirus, cervical cancer link clarified
A specific genetic variation may make some women more susceptible to cervical cancer caused by the human papillomavirus.
Do high heels boost arthritis risk?
Women's fashionable shoes may contribute to a potentially disabling knee arthritis.
BehaviorHooked on a feeling
A brain structure called the amygdala plays a significant role in learning and remembering fearful images.
Articles:Loops of Gravity
Calculating a foamy quantum space-time
Loop quantum gravity provides an intriguing theoretical picture of the microstructure of physical space.
Immune Attack on Cancer
Researchers spur the immune system to rout malignancies
Cancer vaccines offer an alternative to chemotherapy in treating melanoma and prostate cancer.
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Letters: A Selection from Letters to the Editor
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