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Burning patterns into graphite oxide with a laser turns the thin sheets into fully functional supercapacitors, according to a new paper by Rice University scientists in Nature Nanotechnology.

A 2-by-2 array of crossbar switches where memory-resistors at each crossing operate like synapses in the brain.

NASA's Dawn spacecraft obtained this image with its framing camera on July 23, 2011.

Google and Microsoft have just completed another salvo in their ongoing Web-based e-mail war.

For those of us who have been working in this field for some time — which in my case is about 30 years — the mood in Rome was positive, with a palpable sense of encouragement. This was largely fueled by two things: new evidence of the long-term benefits of antiretroviral treatment efforts to date, and new scientific breakthroughs regarding the benefits of treatment for prevention. These developments are transforming the way we think about AIDS.

Universities nationwide have signed onto Gig.U by soliciting ideas for how to extend gigabit per second local-area network speeds over long-distance connections.

A spherical robot equipped with a camera is being proposed to navigate underground pipes at nuclear reactors to locate potential cracks that could leak radioactive water.

Renewable energy passed that of nuclear power in March 2011 (in quadrillion BTUs).

This artist's concept illustrates a quasar, or feeding black hole, similar to APM 08279+5255, where astronomers discovered huge amounts of water vapor.