Adding decoy photons to quantum-cryptographic signals should finally make them "unconditionally secure."
This year, as every year, we present the 10 technologies we find most exciting--and most likely to alter industries, fields of research, and even the way we live.
Plasma turns waste to ethanol.
Researchers are fooling around with E. coli.
One of the largest solar energy plants in the world went on line in Portugal this winter.
Washington's growing interest could help make plug-in hybrids more affordable. The payoff: 150 miles per gallon.
Mapping the genetic diversity of illegally hunted species could help scientists target the origins of outlawed products.
A Canadian government decides that coal plants must clean up their act.
A new startup combines multiple Web services in order to painlessly glean a simple answer from the Internet.
A direct method of converting methane into useful chemical compounds could reduce the release of the potent greenhouse gas at isolated oil fields.