Why We Sleep
The reasons that we sleep are gradually becoming less enigmatic
Features
The Unseen Genome: Gems among the Junk
Just when scientists thought they had DNA almost figured out, they are discovering in chromosomes two vast, but largely hidden, layers of information that affect inheritance, development and disease
The Future of String Theory -- A Conversation with Brian Greene
The physicist and best-selling author demystifies the ultimate theories of space and time, the nature of genius, multiple universes, and more
The Asteroid Tugboat
To prevent an asteroid from hitting Earth, a space tug equipped with plasma engines could give it a push
Stranger in a New Land
Stunning finds in the Republic of Georgia upend long-standing ideas about the first hominids to journey out of Africa
Flying on Flexible Wings
Future aircraft may fly more like birds, adapting the geometries of their wings to best suit changing flight conditions
An Army of Small Robots
For robot designers these days, small is beautiful
Departments
Mathematics of Children -- Culture of Crete -- Philosophy of Heat
- Letters
Erratum
Letters
- Advances
Weekend Weather
Killing the Competition
Edward Teller, 1908-2003
Cleaner Living
Black Hole Life Preserver
Bacterial Batteries
Restoring the Rio
Malcode Melee
Light Sails to Orbit
Healing the Grid
Brain Not Inflamed?
- Recommended
Limited Visibility
- Skeptic
Candle in the Dark
- Anti Gravity
A Bridge Too Far
- Perspectives
Penny-Wise, Planet-Foolish
- In Brief
Data Points: November 2004
Brief Bits: Novemeber 2003
- Puzzling Adventures
Liquid Switchboard
- Voyages
Waiting for Liftoff
- Staking Claims
Shrink-Wrapping the World
- Innovations
Baffling the Bots
- By the Numbers
Why Women Work
- Working Knowledge
Staying Power
- Departments
Fuzzy Logic
- Ask the Experts
Ask the Experts: November 2003
