The Forgotten Era of Brain Chips
The work of Jose Delgado, a pioneering star in brain-stimulation research four decades ago, goes largely unacknowledged today. What happened?
Features
New Bull's-Eyes for Drugs
A familiar class of cell-surface receptors turns out to offer an array of fresh targets that could yield new treatments for disorders ranging from HIV infection to obesity
Founder Mutations
A special class of genetic mutations that often cause human disease is enabling scientists to trace the migration and growth of specific human populations over thousands of years
Better Than a Dog
The search is on for a sensor that bests a canine at detecting explosives
A Cool Early Earth?
The textbook view that the earth spent its first half a billion years drenched in magma could be wrong. The surface may have cooled quickly--with oceans, nascent continents and the opportunity for life to form much earlier...
Ripples in a Galactic Pond
Astronomers are coming to realize that the beautiful shapes of galaxies are not merely incidental. They are essential to the galaxies' growth and development
Smart Wi-Fi
Wireless access to the Internet via Wi-Fi is increasingly popular, so the technology is being upgraded to ensure that users get prompt, reliable service
Departments
Ask The Experts
- Letters
Letters
- Advances
The Biggest Dig
Crawling Sensation
Parsing Parasites
A Force to Reckon With
One Face, One Neuron
Clues to the Earth's Heat
Worlds without End
Missing in Maize
Remember Wrong to Eat Right
Extreme Star Formation
- Recommended
Science Abuse
- Skeptic
Unweaving the Heart
- Anti Gravity
Additions and Corrections
- 50, 100 & 150 Years Ago
Nuclear Babel -- Exobiology Babble -- Cholera Fable
- Perspectives
Fill This Prescription
- In Brief
Data Points: Soaping Up
- By the Numbers
More Boys Than Girls
- Technicalities
Heavy-Metal Sweat
- Working Knowledge
Paving the Way—Working Knowledge on Roads
- Insights
The Beauty of Branes
