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The Worldwide Computer

An operating system spanning the Internet would bring the power of millions of the world's Internet-connected PCs to everyone's fingertips

By David P. Anderson and John Kubiatowicz

The Cosmic Reality Check

A gentle radiance pervading the heavens suggests that astronomers' inventory of cosmic objects may soon be complete

By Günther Hasinger and Roberto Gilli

Repeated Blows

Extraterrestrial impacts ended the age of the dinosaurs. New research shows that they could have been the culprits behind many mass extinctions as well

By Luann Becker

How Should Reading Be Taught?

A highly popular method of teaching reading to children is inadequate on its own

By Keith Rayner, Barbara R. Foorman, Charles A. Perfetti, David Pesetsky and Mark S. Seidenberg

Attacking Anthrax

Recent discoveries are suggesting much-needed strategies for improving prevention and treatment. High on the list: ways to neutralize the anthrax bacterium's fiendish toxin

By John A. T. Young and R. John Collier


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