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Solving the Solar Neutrino Problem

The Sudbury Neutrino Observatory has solved a 30-year-old mystery by showing that neutrinos from the sun change species en route to the earth

By Arthur B. McDonald, Joshua R. Klein and David L. Wark

The Grid: Computing without Bounds

By linking digital processors, storage systems and software on a global scale, grid technology is poised to transform computing from an individual and corporate activity into a general utility

By Ian Foster

The Lowdown on Ginkgo Biloba

This popular herbal supplement may slightly improve your memory, but you can get the same effect by eating a candy bar

By Paul E. Gold, Larry Cahill and Gary L. Wenk

Mount Etna's Ferocious Future

Europe's biggest and most active volcano is growing more dangerous. Luckily, the transformation is happening slowly

By Tom Pfeiffer

Questioning the Oldest Signs of Life

In the past year scientists have been forced to reconsider how they identify life in the most ancient rocks on earth--and elsewhere in the solar system

By Sarah Simpson


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