A supermoon is the coincidence of a full moon with the closest approach the Moon will make to Earth during its orbit, which when combined make for one huge looking moon! If you want to impress your friends next time you go stargazing and happen to catch this phenomenon you can tell them that the actual astronomical term for a supermoon is the perigee-syzygy of the Earth-Moon-Sun system. It’s a mouthful right? Maybe it’d just be better to enjoy the view. Or at least check out these 25 epic photos of a supermoon taken in different locations.