Sunspot cycle beginning in 2012 may put satellites, power grids at risk.
Mobile location tracking lets you see where your friends are. But what about privacy?
Beijing woos some of its best expatriate scientists. US should act, some say.
Never mind the new deal with GM. Dean Kamen reaches back to an 1800s combustion engine to fire up automotive’s electric future.
Venice is building a system of movable barriers that would rise from the seabed to ease the effect of high tides.
On Monday, ZenithSolar unveiled a new solar dish that could make the cost of solar energy competitive with fossil fuels.
Wave power and tidal power are still experimental, but may be little more than five years away from commercial development.