August 27, 2007—Weather permitting, sky watchers will be able to see Earth's shadow slide across the moon tomorrow to create the year's second total lunar eclipse.

The eclipse will be visible in North and South America, Australia, and eastern Asia starting at about 3 a.m. PT on Tuesday and will last for about an hour and a half.

Viewers in Europe and Africa, who had the best view of the last total lunar eclipse in March, won't see tomorrow's event because the sun will have risen in those regions by the time the celestial crossing starts.

The next total eclipse of the moon will occur in February 2008.

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