In the unlikely situation that you are caught unawares by the Sun being obscured by a large black circle, you are probably witnessing a solar eclipse, a rare event where our Moon is between us and the Sun (the other way round is a lunar eclipse). Eclipses can happen anytime there is a stellar body between two others, and are fairly spectacular to witness. As our understanding of orbits and physics increases we can better predict and observe these astronomically awesome events. 

What is a supermoon?

Formally known as the perigee-syzygy of the Earth-Moon-Sun system, supermoons are lunar events that have a big effect on how we view the Moon. 

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