Kovio's new technology for printing inorganic transistors could lead to large-area displays and ultracheap smart cards.

A tool from MIT finds keywords so that students can efficiently review lectures.

A new handheld device could replace invasive techniques for evaluating muscle tissue and speed research on drugs for Lou Gehrig's disease.

A metagenomic study could suggest ways to make cellulosic ethanol.

Nokia's Enpocket acquisition paves the way for contextualized mobile advertising.

Your holiday turkey won't give you more faith in your family, but new research suggests that there is a relationship between tryptophan and trust.

Software that finds and fixes hardware bugs could get chips to market faster and make them more secure.

E Ink is making color and video versions of its e-paper, but commercial products are a few years off.

An easy method for reprogramming adult cells may resolve ethical objections.

The emerging field of connectomics could help researchers decode the brain's approach to information processing.

A new device could help dentists better detect the early signs of tooth decay.

A new process could make nanotube fibers that are strong enough to stop bullets.

Blue Source demonstrates a remediation system that could capture carbon dioxide at advanced coal plants.

The W3C hopes that its new tool will help developers build websites that will work well on any device, be it a phone or a video-game console.

Arrays of cheap magnetic sensors could detect improvised explosive devices.

Commercial-scale plants are being built, but the fuel could still be too expensive to compete with corn ethanol.

Sophisticated brain-imaging studies suggest new ways to treat chronic pain.

How Evan Williams helped create the new social medium of microblogging.