MIT's Sandy Pentland finds surprising implications in patterns of cell-phone use.

The Psiphon network frustrates censors by using trusted friends.

Do we really have any alternative to biofuels?

Giving each member of a digital crowd its own personality could make animated mob scenes more realistic.

New publications, experiments and breakthroughs in biotechnology--and what they mean.

New publications, experiments and breakthroughs in information technology--and what they mean.

New publications, experiments and breakthroughs in nanotechnology--and what they mean.

Four decades ago, Norman E. Borlaug developed a wheat variety that fed the world. Now he's battling an old enemy: a pathogen whose spread could cause starvation.

A new company makes a modular electronic device.

The chip maker has announced a tiny drive that could help bring the power of desktop computers to handheld devices.

MIT fares well in DARPA's famous robotic-car race.

Politics continue to complicate energy policy.

A new product from Swarmcast monitors data flow to optimize video quality.

Making ethanol from corn is expensive. Better biofuels are years away from the gas tank. But do we really have any alternative?

The evolution of Web search.

The rectilinear glass box has become a relic of the predigital past.

A fully implantable hearing aid is showing promise.

Radiohead is messing with the business of music.

Devices made of heart tissue could screen drugs and power implantable robots.