Table of Contents March 2003

Discover Magazine's mission is to enable readers to lead richer lives by explaining and expanding their universe.  Each month we bring you in depth information and analysis from various topics ranging from technology and space to the living world we live in.
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Unraveling the mystery of how the mind experiences fear is one of the most interesting quests in recent neuroscience.
Sony's AIBO robotic dog is a peek at a bizarre future when you won't know if a dog—or the pretty girl walking it—is flesh and blood or plastic and memory chips.
The scientist who destroyed our quaint concept of what a mother ought to be comes to terms with her own life.
In a dozen years, NASA plans to bring Mars soil samples to Earth. No one is quite certain what to do with them when they get here.
Older, more primitive skulls from Eurasia and Africa are changing what we thought we knew about where we came from.
Exploding populations of white-tailed deer are stripping our forests of life.


Before treatment became available, rabies was one of the most uniformly fatal viral infections. It still kills too many.
Asperger syndrome and Aztec civilization are just two of the topics covered in these fascinating books and events.


Even as its fuel dwindles and instruments fail, Galileo continues to surprise scientists.
Eating fish helps keep the brain healthy.
The neural circuitry that triggers ejaculation is actually in the lower spinal cord.
Fuel and toxic chemicals are still leaking from ships sunk in the Pacific in WWII.
Avalanches within Earth's core could alter currents and temporarily shut off Earth's magnetic field.
The sites of prehistoric rock art tend to have particularly strong sound reflections.
The universe doesn't just blow—sometimes it sucks.
Walter Willett wants to throw out the USDA guidelines entirely and replace them with a science-based Healthy Eating Pyramid.
Free improv may yet become a part of the computer's musical repertoire.
Vesta is a chalk-white miniature planet of giant craters and frozen lava.
The plant reflects the level of contaminants in its surroundings.

Subtle gravitational effects on stars' dust rings could point to the presence of a planet.

Ancient skulls are rewriting the history of human colonization in North America.

One researcher's attempt to tabulate and map human practices.

An evolutionary model that explains why women are attracted to much older men.
Researchers develop an on-the-spot drug test for saliva.
Geologists and biologists know where to look for the earliest life—but the rocks are hard to read.
Amplifying solar energy can create a laserlike device able to kill most cancerous tumors.
How your brain can focus on what it wants to see.