Longest Lunar Eclipse In Nearly 600 Years Is This Friday

The longest lunar eclipse in nearly 600 years takes place this week. NASA says a near-total lunar eclipse will be visible across North America early Friday, leaving nearly 97-percent of the full Moon in a dark shadow with only a sliver of light on its left side. The eclipse will last for about three-and-a-half hours, peaking at about 4 a.m. Eastern Friday morning. Astronomers say it's the longest partial lunar eclipse in about 580 years.