Hydrogen is the most common gas found in the universe. By weight, hydrogen has highest energy content of any standard fuel. Though hydrogen-powered vehicles are already on some roads, researchers continue to look for more cost-effective ways to make the fuel. Learn more about the energy potential of hydrogen on the Web sites below.
- Children learning about hydrogen will benefit from the Energy Information Administration’s EIA Energy Kids site, which hosts a straightforward article about the basics of hydrogen, accompanied by useful illustrations, diagrams and photographs.