Table of Contents May 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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Europe's space program takes a step forward—in science and prestige.
In Alaska, biologists are learning that when wild salmon are free to swim upstream to spawn, dozens of other species flourish too
Technological savvy could turn 600 million tons of turkey guts and other waste into 4 billion barrels of light Texas crude each year.
A new generation of DNA genealogists stand ready to unearth our ancestors. We may not like what they find
About 800 years ago, Native Americans in the Southwest began building stone citadels and sky-high pueblos. What were they afraid of?
Are we finally getting good enough at biochemistry to understand the mystery—and magic—of romance?


She looked healthy, yet the X ray suggested she would soon die

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