The August 21, 2017 eclipse will be the first crossing entire U.S. since 1918.

On Monday, August 21, 2017, the entire population of the contiguous United States — which includes 48 states, omitting Hawaii and Alaska — will have the opportunity to witness the first ‘Total Solar Eclipse’ since June 8, 1918. While they aren’t necessarily rare, this occasion is special due to the fact that all Americans can travel in close proximity to witness the phenomenal spectacle should they choose to do so. Those who don’t want to leave their homes will most certainly be able to see a ‘Partial Solar Eclipse,’ which is still a sight for sore eyes.

Speaking of sore eyes, NASA suggests wearing some sort of eye protection capable of withstanding significant radiation during this short occurrence.

The last time the path of totality was exclusive to the present-day United States was approximately 760 years ago.

What is a total solar eclipse?

In essence, a total solar eclipse is when the moon directly crosses the path between the Earth and the sun. In that exact instance, the moon will block the sun entirely, covering its tenuous atmosphere — the corona. Although this circumstance does happen on occasion, its rarity lies in the few minutes visible and the preciseness of a person’s location on Earth. It’s estimated that the longest period of time to view what is considered one of nature’s most awe-inspiring sights is around two minutes and 40 seconds.

Back in 1979, UC Berkeley Professor of Astronomy…

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