(@CNN) The First Solar Eclipse In 375 Years Will Appear On August 21st. The Moon Covers The Sun. (@NBCNews)

The solar eclipse, which will happen August 21, only happens about once every 375 years, according to NASA.

If your trips to the library are similarly infrequent, you may want to change that.
More than 2 million pairs of eclipse glasses, which allow you to watch the solar eclipse without damaging your eyes, are being distributed free at public libraries across the country. Read more by clicking here: CNN

Film: Courtesy of NBC News