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The Stem Cell Challenge
The Sciences

The Stem Cell Challenge

What hurdles stand between the promise of human stem cell therapies and real treatments in the clinic?

By Robert Lanza and Nadia Rosenthal

Smart Sensors to Network the World

An emerging class of pillbox-size computers, outfitted with sensors and linked together by radios, can form perceptive networks able to monitor a factory, a store--even an ecosystem. Such devices will more intimately connect the cyberworld to the real world

By David E. Culler and Hans Mulder

Saturn at Last!

After a seven-year journey, the Cassini-Huygens spacecraft is preparing to unveil the mysteries of Saturn, its rings and its giant moon, Titan

By Jonathan I. Lunine

Nuclear Explosions in Orbit

The spread of nuclear weapons and ballistic missiles raises fears of atomic attacks on the global satellite system

By Daniel G. Dupont

Nanotechnology and the Double Helix

DNA is more than just the secret of life--it is also a versatile component for making nanoscopic structures and devices

By Nadrian C. Seeman
Lessons from the Wolf
The Sciences

Lessons from the Wolf

Bringing the top predator back to Yellowstone has triggered a cascade of unanticipated changes in the park's ecosystem

By Jim Robbins

Departments

  • Deep Silence

  • Eye on the Junk

  • A Confederacy of Smarts

  • 50, 100 & 150 Years Ago: Polio Gossip, Wright Rumors and Yak Yak Yak

  • Letters

    Letters

  • Errata

  • Advances

    Homo carnivorous

  • Sitcoms on the Brain

  • Power-Thrifty PCs

  • Diving for Dead Wood

  • Read My Lips

  • Outer Quantum Limits

  • Toddler Troubles

  • Rewritable Appetite

  • The First Pet Cats

  • Recommended

    Deploying Science to Desperate Ends

  • Skeptic

    Death by Theory

  • Anti Gravity

    Take This Job and Do It

  • In Brief

    Brief Points: June 2004

  • Staking Claims

    The Silent Revolution

  • By the Numbers

    Civic Culture

  • Technicalities

    Security at Your Fingertips

  • Insights

    A Transparent Enigma

  • Ask the Experts

    Ask the Experts: June 2004

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June 2004

Think Outside the Gift Box