Solar technology that generates both heat and electricity could make solar energy practical in places that aren't sunny.
ESolar expects to start up its large solar thermal plant soon.
The DOE's backing revives a pioneering clean-coal project.
Putting OLPC's software on a USB drive gives old PCs a new lease on life.
A novel water-cooling system makes it more efficient for computers to heat buildings.
The federal government is about to spend billions of dollars on renewable energy. In Part II of our series on the federal stimulus bill, we look at the impact the spending will have on the future of solar power.
A Chinese-built electric sedan could be the first on sale in the United States, but it will quickly face competition.
Independent review of human-spaceflight plans gets under way today.
The company will bring vehicles to market in 2012.
An Israeli startup says that it has a cheap process to make biofuels from cellulosic materials.