A network of floating docks could harness clean energy for New York City and provide new space for parks, researchers propose.
Three independent groups have announced the detection of water on the Moon's surface.
Philips, the Dutch electronics giant, has submitted the first entry for the L Prize, an Energy Department contest that will award up to $10 million to the first person or group to create a new energy-sipping version of the most popular type of light bulb used in America.
