Why don't we have a lunar eclipse with every full moon? Here's when to see this rare event
A total lunar eclipse is a rare event, because conditions have to be just right for it to occur. Here's what to know about the one in March.
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What is a lunar eclipse? What to know before 'blood moon'
A lunar eclipse is an alignment of the Earth, moon and sun where the moon passes through the Earth's shadow, or umbra. As it does, the moon will appear to darken and take on a crimson shade of red.