Earth’s shadow will block most of the light that illuminates the lunar surface, creating what is known as a blood moon.

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

Total lunar eclipse – The entire Moon moves into Earth's shadow and turns red. Partial lunar eclipse – Only part of the Moon enters Earth's shadow, creating a visible dark section. Penumbral lunar eclipse – A subtle event where the Moon passes through Earth's outer shadow, causing a slight dimming.