A total lunar eclipse is about to turn the moon blood red for the first time in two years. Overnight Thursday, watch Earth's shadow swallow the moon.

A lunar eclipse occurs when the Earth moves directly between the sun and the moon. In this case, the Earth blocks light from the sun and casts a shadow on the moon's surface, dimming it and causing it to turn red for a few hours.

The moon will enter the Earth's shadow and create a total lunar eclipse for the first time since November 2022, according to NASA. The moon will turn deep shades of rusty red throughout the more than hourlong totality,

A total lunar eclipse will turn the full moon red on Thursday evening and Friday morning across the Western Hemisphere, depending on where you live.