The Workings of an Ancient Nuclear Reactor
Two billion years ago parts of an African uranium deposit spontaneously underwent nuclear fission. The details of this remarkable phenomenon are just now becoming clear
The Neurobiology of the Self
Biologists are beginning to tease out how the brain gives rise to a constant sense of being oneself
The Land of Milk and Money
The first drug from a transgenic animal may be nearing approval
The Illusion of Gravity
The force of gravity and one of the dimensions of space might be generated out of the peculiar interactions of particles and fields existing in a lower-dimensional realm
Preparing for a Pandemic
One day a highly contagious and lethal strain of influenza will sweep across all humanity, claiming millions of lives. It may arrive in months or not for years--but the next pandemic is inevitable.
Are we ready?
Did Life Come from Another World?
New research indicates that microorganisms could have survived a journey from Mars to Earth
Crisscrossing assemblies of defect-prone nanowires could succeed today's silicon-based circuit