PrimeWire

You can now watch the entire National Geographic Naked Science: Solar Force movie online in high-definition quality, complete with English subtitles for a better viewing experience. Best of all, there’s no need to download anything—simply stream it directly from your device anytime, anywhere.

The level of cosmic rays emitted by the sun is anything but constant. Scientists are just now discovering the ways in which the sun's fluctuating output affects our planet's weather and overall climate.