Mercury: The Forgotten Planet
Although one of Earth's nearest neighbors, this strange world remains, for the most part, unknown
Volume 277, Issue 5
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Features
Fermat's Last Stand
His most notorious theorem baffled the greatest minds for more than three centuries But after 10 years of work, one mathematician cracked it
Taking Nuclear Weapons off Hair-Trigger Alert
It is time to end the practice of keeping nuclear missiles constantly ready to fire. This change would greatly reduce the possibility of a mistaken launch
The Parasitic Wasp's Secret Weapon
Parasitic wasps must develop inside living caterpillars. They survive this hostile environment by smuggling in a virus that suppresses their host's immune system
Fighting Computer Viruses
Biological metaphors offer insight into many aspects of computer viruses and can inspire defenses against them
Great Zimbabwe
For centuries, this ancient Shona city stood at the hub of a vast trade network. The site has also been at the center of a bitter debate about African history and heritage
Making Rice Disease-Resistant
For the first time, scientists have used genetic engineering to protect this essential crop from disease