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Satellite-Guided Munitions

Highly accurate yet affordable strike weapons, proved in Afghanistan, are the latest upgrades to America's arsenal

By Michael Puttré

Explaining Frog Deformities

An eight-year investigation into the cause of a shocking increase in deformed amphibians has sorted out the roles of three prime suspects

By Andrew R. Blaustein and Pieter T.J. Johnson

Drink to Your Health?

Three decades of research shows that drinking small to moderate amounts of alcohol has cardiovascular benefits. A thorny issue for physicians is whether to recommend drinking to some patients

By Arthur L. Klatsky

Evolving Inventions

Computer programs that function via Darwinian evolution are creating inventions that are novel and useful enough to be patented

By John R. Koza, Martin A. Keane and Matthew J. Streeter


Some stars are magnetized so intensely that they emit huge bursts of magnetic energy and alter the very nature of the quantum vacuum

By Chryssa Kouveliotou, Robert C. Duncan and Christopher Thompson


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