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

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.

Late Thursday into the wee hours of Friday, skywatchers across North America can see the moon turn red for the first time since 2022.