The "black moon," a rare phenomenon that occurs during a new moon phase of the lunar cycle, will occur this weekend. But don't get your hopes up too much, scientists say, because it will be technically invisible. Here's what to know.

Without the moon shining in the sky, the stars alongside it should appear to shine more brightly, according to the the Old Farmer's Almanac. New moons like the Black Moon also have a stronger pull on Earth's tides, causing them to be extra high or extra low, the almanac states.