Facts about the US solar eclipse on August 21
(World News Science)

MIAMI: On Monday, August 21, for the first time in 99 years, a total solar eclipse will march across the entire United States. `The Great American Eclipse` will cast a shadow over the whole country, moving diagonally from Oregon in the northwest to South Carolina in the southeast. Here are some facts on this eclipse, and what makes it so unique: This is the first eclipse to pass over the United States in the 21st century. It is the first total eclipse on American soil since 1991, when one was visible from the Big Island of Hawaii. But it has been 38 years since the mainland United States glimpsed a total eclipse. The last one was in 1979, and that swept only a handful of northwestern states....