A total lunar eclipse will make the moon appear red across the Western Hemisphere during the "Blood Worm Moon" this week.

A total lunar eclipse turned the moon red early Friday morning. Moon-gazers across North and South America gathered late Thursday night into Friday morning to catch a glimpse. The complete span of

Skywatchers across the world will witness the first total lunar eclipse in three years. Here’s who will have the best views—and what gives the moon its eerie red tint.