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Regaining Balance with Bionic Ears

Electronic implants in the inner ear may one day restore clear vision and equilibrium in some patients who experience disabling unsteadiness

By Charles C. Della Santina

Faulty Circuits

Neuroscience is revealing the malfunctioning connections underlying psychological disorders and forcing psychiatrists to rethink the causes of mental illness

By Thomas R. Insel

8 Wonders of the Solar System

Artist Ron Miller takes us on a journey to eight of the most breathtaking views that await intrepid explorers of our solar system. The scale of these natural wonders dwarfs anything Earth has to offer. What might we see and feel if we could travel to these distant domains? The artist's eye—interpreting data from probes such as NASA's Cassini, which is now exploring the Saturnian system, and MESSENGER, which has flown by Mercury three times and goes into permanent orbit next March—allows us an early visit to these unforgettable locales.

By Edward Bell

The Rise of Instant Wireless Networks

Wireless networks that do not depend on a fixed infrastructure will allow for ubiquitous connectivity regardless of the situation

By Michelle Effros, Andrea Goldsmith and Muriel Médard

Boundaries for a Healthy Planet

Scientists have set thresholds for key environmental processes that, if crossed, could threaten Earth's habitability. Ominously, three have already been exceeded

By Jonathan Foley, Gretchen C. Daily, Robert Howarth, David A. Vaccari, Adele C. Morris, Eric F. Lambin, Scott C. Doney, Peter H. Gleick and David W. Fahey

Breaking the Growth Habit

Society can safeguard its future only by switching from reckless economic growth to smart maintenance of wealth and resources

By Bill McKibben

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