Researchers at a California National Lab will soon attempt to start self-sustaining fusion reactions using the world's largest lasers.
If it works, it could be a first step on the road to abundant fusion power.
Data centers already consume huge amounts of power, and demand is growing fast. But new energy-saving technologies, the consolidation of servers, and virtualization technology could help.
Cloud computing could transform how software is developed and used, creating a raft of new online services and applications for businesses and consumers. Explore articles, video and interactive diagrams.
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.