What to know about this week's 'blood worm moon' total lunar eclipse

This total lunar eclipse — the first in three years — will feature a "blood worm moon," so named for the reddish hue of its glow and the time of year it's occurring.

What to know about this week's 'blood worm moon' total lunar eclipse
Light shines from a total lunar eclipse over Santa Monica Beach in Santa Monica, Calif., on May 26, 2021.

This total lunar eclipse — the first in three years — will feature a "blood worm moon," so named for the reddish hue of its glow and the time of year it's occurring.

(Image credit: Ringo H.W. Chiu)