ScienceCasts: Solar Eclipse in the USA

A "ring of fire" solar eclipse is coming to the USA on Sunday, May 20, 2012. The Moon will pass in front of the sun, transforming sunbeams across the Pacific side of Earth into fat crescents and thin rings of light. It's the first annular eclipse visible from the contiguous United States in almost 18 years. The event will reveal itself in the shadows. Look on the ground beneath leafy trees for crescent-shaped sunbeams and rings of light. NEVER LOOK DIRECTLY AT THE SUN.