"Studying the relic radiation from the beginning of the universe is critical for understanding how the entire cosmos came to be and why it is the way it is." When you purchase through links on our ...

Duke Energy, one of the largest energy companies in the world, grew out of a system of lakes and dams along the Catawba River to generate power for the Piedmont Carolinas. While the company has ...

More than three billion people in developing countries rely on traditional biomass for cooking and heating. One and a half billion people are without electricity and even when energy services are ...