Chicago will soon have one of its best opportunities in decades to experience a total lunar eclipse. Come the night of March ...

A blood moon occurs during a total lunar eclipse when Earth's shadow casts a reddish tint on the moon. This intriguing visual phenomenon arises due to Rayleigh scattering of sunlight. The next ...

which will also feature a "Blood Moon." Lunar eclipses happen when Earth is between the sun and a full moon. During the event, the moon moves through Earth's umbra, the dark center of its shadow.