The Great American Esclipse
On Monday, August 21, 2017, a total solar eclipse, being referred to as the “Great American Eclipse“, was visible within a band across the entire contiguous United States passing from the Pacific to the Atlantic coasts. In other countries, it was visible only as a partial eclipse.
A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon’s apparent diameter is larger than the Sun’s, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth’s surface, with the partial solar eclipse visible over a surrounding region thousands of kilometers wide.
The previous time a total solar eclipse was visible across the entire contiguous United States was June 8, 1918; not since the February 1979 eclipse has a total eclipse been visible from anywhere in the mainland United States.[ The path of totality touched 14 states, and the rest of the U. S. had a partial eclipse.
Future total solar eclipses will cross the United States in April 2024 (12 states) and August 2045 (10 states). (Information provided by Wikipedia).