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AstronomyGamma-ray burst leaves ephemeral afterglow
A ground-based telescope on automatic pilot has taken one of the earliest images ever recorded of the visible-light afterglow of a gamma-ray burst, one of the most energetic flashes of radiation in the universe.
By Ron Cowen -
Health & MedicineClot promoter cuts surgical bleeding
A clot-promoting protein known as recombinant activated factor VII might offer a new way to staunch demand for blood transfusions.
By Ben Harder -
Psychiatric drugs surge among kids
The proportion of children and teenagers in the United States taking drugs prescribed for psychiatric disorders more than doubled from 1987 to 1996.
By Bruce Bower -
EarthElectronic Jetsam
Oceanographers are developing and deploying a variety of seafaring probes—including drifters, gliders, and scientific torpedoes—that will enable them to explore and monitor the ocean remotely.