Flying on Flexible Wings
Future aircraft may fly more like birds, adapting the geometries of their wings to best suit changing flight conditions
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
An Army of Small Robots
For robot designers these days, small is beautiful
Why We Sleep
The reasons that we sleep are gradually becoming less enigmatic
Evolution
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
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
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Edward Teller, 1908-2003
Killing the Competition
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Black Hole Life Preserver
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Mathematics of Children -- Culture of Crete -- Philosophy of Heat
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Data Points: November 2004
Brief Bits: Novemeber 2003
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Ask the Experts: November 2003