Anthropologists have long debated when and how men became hunters. Recent discoveries have yielded surprising insights." By Kate Wong

Not long after the big bang, all light left the cosmos. Astronomers are solving the mystery of its return. By Michael D. Lemonick

Hidden Dangers of Going Under. Anesthesia may have lingering side effects on the brain, even years after an operation," by Carina Storrs

A unique US Government program has driven the cost of genome sequencing impressively downward, by Erika Check Hayden

A foreign fungus nearly wiped out North America's once vast chestnut forests. Genetic engineering can revive them, by William Powell

I wanted to build software to navigate medical jargon, but ended up revealing plagiarism and fraud, by Harold "Skip" Garner.

Researchers are find that online collaboration can speed up their work - if they choose the right problem, by Philip Ball

Video games could transform education, but game designers, teachers & parents must overcome hype and fear," by Alan Gershenfeld.

A hard-won political victory for primate research is at risk of unravelling in pockets of Europe, by Alison Abbott

Why you shouldn't be surprised when the same six winning lottery numbers come up in successive drawings, by David J. Hand