A metal pad that can recharge devices placed on top of it has come to market.

Researchers are using human embryonic stem cells to determine the toxicity of potential pharmaceuticals.

A new inkjet-printed technology enables a different kind of wireless connectivity between devices.

A novel nanolaser could cram more data onto a hard disk.

Helium isotopes reveal hidden stores of geothermal energy.

Facebook's advertising system provokes questions about how companies share data.

New nonsilicon transistors could be integrated into existing chip-making processes.

A novel 3-D imaging technique provides a first look at the internal structure of human skin cells.

A specialized camera regularly takes pictures to aid with memory.

A new nanoscale tool reveals strong electric fields inside cells.

New chemistry and microsurfaces have led to super oil-repellent materials that are self-cleaning.

A startup claims to read people's minds while they view ads.

As the primaries near, the presidential candidates are calling for similar, ambitious growth in ethanol biofuel.

Adobe's AIR allows applications to bridge the Web and desktop.

A novel wireless EKG monitor could make diagnosing heart conditions much easier.

Nanoparticles can be activated by radio frequencies.

George Church wants to sequence your entire genome.

Researchers have made defect-free gallium-nitride nanowires that could replace bulky quartz crystals in cell-phone receivers.

Microwaves can significantly shrink cancer cells.

The failure of a highly anticipated game shows the academic limits of virtual worlds.

A new genetic database could help reveal why animals age so differently.

Google's new technology could enable location-finding services on cell phones that lack GPS.

Future diagnostic tests for cancer may probe cell stiffness.

How might expanding Google's cloud-computing service alter the digital world?