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Materials

Controlled Crystals Make a New Solar Material Practical

A new kind of low-cost, high efficiency solar cell emerges thanks to crystals known as perovskites.

Computing

Massive Internet Outage Points to Flaws in Policy and Technology

Time Warner Cable’s 11.4-million-customer broadband blackout was one of the largest to affect U.S. customers.

Materials

Progress on a Powerful New Way to Generate Electricity

A powerful new way to generate electricity could eventually make electric cars and electronic gadgets run longer.

Computing

Hidden Obstacles for Google’s Self-Driving Cars

Impressive progress hides major limitations of Google’s quest for automated driving.

Materials

Germany and Canada Are Building Water Splitters to Store Renewable Energy

Improving technology is making electrolysis a viable way to store excess energy from renewable sources.

Computing

A Chip for Longer-Lasting Wearable Computers

Batteries for smart watches and other wearables never last long. A new microchip design could change that.

Computing

Furniture Shopping with Augmented Reality

Startup Vizera makes a projector that adds realistic-looking surfaces to actual objects, making for a new kind of shopping experience.

Computing

A Headset Meant to Make Augmented Reality Less of a Gimmick

A novel optical technique could overlay virtual imagery on the real world through a compact pair of glasses.

Computing

How Much Is Your Privacy Worth?

Despite the outcry over government and corporate snooping, some people allow themselves to be monitored for money or rewards.

Biomedicine

How ALS Could Benefit from a Flood of New Funding

A viral social-media campaign has brought unprecedented money to a rare disease. How might new funding help ALS research?