By Julie Zauzmer By Julie Zauzmer March 15 at 6:00 AMFollow @JulieZauzmer
Everyone in the continental United States will need safety glasses for looking at the sky during the August 21 eclipse. (Mark Margolis / Rainbow Symphony)
On Monday, Aug. 21, in the middle of the day, the sky will go dark. The temperature will suddenly get several degrees colder. Birds will stop chirping and retreat to their nests. And tens of millions of people, crammed into a 60-mile-wide path that crosses from Oregon to the Carolinas, will stand in America looking up at the sky.