Charles Q. Choi is a frequent contributor to Scientific American. His work has also appeared in The New York Times, Science, Nature, Wired, and LiveScience, among others. In his spare time, he has traveled to all seven continents.
Special Report: 10 Promising Treatments for World's Biggest Health Threats
Cutting-edge pharmaceuticals now being tested could revolutionize the fight against cancer, Alzheimer's, HIV, diabetes, nicotine addiction and other devastating diseases
DNA Sequencing on the Cheap
Optical technology advances toward the $1,000 genome
Voting with the Heart
Emotion trumps reason at the ballot box
Sight Savers
Technology that could help the blind see is now in the laboratory
Material Progress
Designers have crafted new structures ranging from nanorods to mimics of mother-of-pearl
Blastomere Blowup
A novel way to harvest stem cells intrigues and inflames
Fat Side of the Moon
Fido's Transmissible Tumor
Cotton-Picking Results
Superlens Peers Below the Surface
Support for the Stick
Old MacDonald's Pharm
First drug from transgenic goats nears approval
Biodiesel Is Better
Magical Mushroom Tour
Camera Shy
A Place for RNA
A Firm Stand
Alight Touch
From Brain to Heart
New Way to Create Elements
Mass Change
Not So Super
Will antibody therapies receive added scrutiny?
Fish Out of Water
Peaking Intelligence