The Truth about Nanobacteria
Once believed to be the smallest pathogens known, nanobacteria have now proved to be something almost as strange. They do play a role in health—just not the one originally thought
Features
How Asteroids Built the Continents
Did asteroid strikes during the earth's youth spawn the earliest fragments of today's landmasses?
South Asian Threat? Local Nuclear War = Global Suffering
Worry has focused on the U.S. versus Russia, but a regional nuclear war between India and Pakistan could blot out the sun, starving much of the human race
Gaming for Profits: Real Money from Virtual Worlds
Online fantasy games enable developing world entrepreneurs to make a living by trading stashes of make-believe gold for hard cash
The Next 20 Years of Microchips: Pushing Performance Boundaries
Designers are pushing all the boundaries to make integrated circuits smaller, faster and cheaper
Departments
Looking for Life in the Multiverse
How to Cure 1 Billion People?--Defeat Neglected Tropical Diseases
Loopy Hearing Aid Idea Brings In Speech Loud and Clear
The Nuclear Doomsday Clock Still Ticks
Recommended: Secrets of the Universe: How We Discovered the Cosmos
The Potential "Problem" with a Public Interest in Science
- From the Editor
Life Quest: Could Parallel Universes Be Congenial to Life?
- Letters
Readers Respond on the "Origin of Computing"
- Advances
Earth-Like Planets May Be Made of Carbon
Climate Numerology: How Much Atmospheric Carbon Dioxide Is Safe?
AIDS Vaccine: Mixed Result, Possible Future
Fetal Cells Return as a Parkinson's Cure
Using Light and Genes to Probe the Brain
Warp-Speed Algebra: New Algorithm Does Algebra in a Snap
Voted for McCain? Your Testosterone Dipped
- Skeptic
Kool-Aid Psychology: Realism versus Optimism
- 50, 100 & 150 Years Ago
100 Years Ago: The Perfect Car
- Perspectives
Nano-Risks: A Big Need for a Little Testing
- Sustainable Developments
Looking for Change in the Beltway: The Need for Open Process
