Astronomers, stargazers prepare for last solar eclipse of millennium
Astronomers and amateur sky-watchers alike will have the opportunity today to observe the Western Hemisphere's final total solar eclipse during this millennium.While the eclipse will only reach totality in a small area of the Caribbean, a partial eclipse will be observable throughout much of North and South America.A solar eclipse takes place when the moon comes between the earth and the sun, thereby blocking the sun's direct rays and casting its shadow on the earth's surface.Total solar eclipses are fairly common, with one occurring about every 18 months.




