The sun may rise every morning, but the amount of sunlight reaching Earth's surface can substantially vary over decades, ...

A constellation of satellites orbiting 250 miles above Earth’s surface shows how solar and wind have taken off in recent years: Here’s what renewable energy sites looked like eight years ago.

Known as AR3664 to its friends, the huddle of spots on the Sun’s surface fired powerful solar ... spectrum, including X-rays and UV radiation. When they smash into Earth, they give an electrical ...

Although L 1, the point between the Earth ... s spectrum across a CCD detector to cover from 5 nm to 37 nm. The MEGS-A CCD also acts as a sensor for a simple pinhole camera known as the Solar ...

Despite the name, however, this isn't a physical hole in the solar surface; coronal holes are ... from this coronal hole are scheduled to reach Earth by the end of this week.