Regulating Evolution: How Gene Switches Make Life
Switches within DNA that govern when and where genes are turned on enable genomes to generate the great diversity of animal forms from very similar sets of genes
Features
Fighting Killer Worms
Bloodsucking worms called schistosomes are among the world's most worrisome human parasites. A new genome sequence and powerful genetic tools promise to help crack their secrets
Hooked from the First Cigarette
New findings reveal that cigarette addiction can arise astonishingly fast. But the research could lead to therapies that make quitting easier
Science 2.0 -- Is Open Access Science the Future?
Is posting raw results online, for all to see, a great tool or a great risk?
How Cells Clean House
Worn-out proteins, malfunctioning organelles, invading microorganisms: all are swept up by tiny internal "vacuum cleaners" that keep a living cell healthy. If the process, called autophagy, can be kept in good working order, aging itself might be delayed...
Nuclear Fuel Recycling: More Trouble Than It's Worth
Plans are afoot to reuse spent reactor fuel in the U.S. But the advantages of the scheme pale in comparison with its dangers
The Chaotic Genesis of Planets
Long viewed as a stately procession to a foregone conclusion, planetary formation turns out to be startlingly chaotic
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Do-It-Yourself Science
- Letters
Mailbag: Is Fluoride Dangerous? Is a Solar Grand Plan a Good Idea?
- Advances
Down to the Wire
Following the Money
Naps for Better Recall
Whatever Happened to the Pioneer Spacecraft?
This Is Your Mom on Drugs: Aging Doesn't Stop Drug Use
Finding Fossils Faster
Copy That
Are Personal Genome Scans Medically Useless?
Self-Healing Rubber
Sir Arthur C. Clarke, 1917-2008
Do You See What I See?
Smokestack Soak-Up
Split Defense
- Forum
We Need More Novels about Real Scientists
- Recommended
Flatland the Movie, against Happiness
- Skeptic
The Brain Is Not Modular: What fMRI Really Tells Us
- Anti Gravity
Antigravity: Catalogue Gizmos of Questionable Efficacy
- 50, 100 & 150 Years Ago
100 Years Ago in Scientific American: The Wright Brothers' First Flight
- Perspectives
Why the Next President Needs a Powerful Science Adviser
- In Brief
Data Points: Preparing for Doomsday
In Brief, May 2008
- Working Knowledge
Living Cover—Working Knowledge on Green Roofs
- Insights
Dark Forces at Work
- Sustainable Developments
The African Green Revolution (Extended version)
