"Are Aliens Among Us?": Scientists are searching for life forms on Earth that are radically different from all known organisms.
"Making Carbon Markets Work": Limiting climate change without damaging the world economy depends on stronger and smarter market signals to regulate carbon dioxide.
"Diet Advice from DNA": Internet marketers claim that a genetic test can give you a personalized diet.
"The Semantic Web in Action": Corporate applications on the Internet are coming - and consumer uses for them are emerging.
"The Many Worlds of Hugh Everett": A profile of physicist Hugh Everett. After his now celebrated theory of multiple universes met with scorn, Everett abandoned the world of academic physics. His life became centered on top-secret military research - and it ended tragically.
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