What is a Black Moon? | Video

By Steve Spaleta | September 23, 2016 12:45pm ET

The second new moon in a single month is known as the Black Moon. It occurs about once every 32 months. Find out more here.

credit : Space.com / imagery courtesy: Victor C. Rogus / NASA LRO / Zachary Maughmer / edited by David Mielach

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Space, astronomy and science