In the past two years, without much notice, solar power has begun to truly transform the world’s energy system.

Grades 9-12 Learn about the cause of sunburns, in this video from NOVA’s Gross Science series. Sunlight is made up of many types of radiation: infrared, visible, and ultraviolet (UV). UV radiation can ...

Once they escape the Sun, they zoom through space at the speed of light, eventually reaching Earth and giving us that sweet, ...

The solar wind pushes some of the gas and dust away from the comet, forming those beautiful tails we see. A comet actually ...

The sprawling Republican budget bill approved by the Senate Tuesday removes a proposed tax on solar and wind energy projects but quickly phases out tax credits for wind, solar and other renewable ...

The solar wind fills space around us to create a giant "bubble" we call the heliosphere. The heliosphere’s size, shape, and dynamics are mostly still unknown.

With solar energy playing an increasingly dominant role in global energy generation, here are some key facts you should know about solar: ...

How far away it is: 93 million miles (150 million km) ...

Discover interesting facts about the sun, the solar system's central star that supports all life on Earth.