On a much larger scale, solar-thermal power plants employ various techniques to concentrate the sun's energy as a heat source. The heat is then used to boil water to drive a steam turbine that ...

Scientists discovered tiny jets on the Sun that power both fast and slow solar wind. These jets eject particles and shape ...

By 2050, over 5 billion people — probably more than half the planet’s population — will be exposed to at least a month of health-threatening extreme heat when outdoors in the sun ...

The movement of wind and water, the heat and light of the sun, the carbohydrates in plants, and the warmth in the Earth—all are energy sources that can supply our needs in a sustainable way. A variety ...