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.


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)