According to Space.com, “The moon's halo or lunar halo is an optical illusion that causes a large bright ring to surround the moon. This striking and often beautiful halo around the moon is ...

Some claim the moon ring is a sign of bad weather or a warning of an impending earthquake. The folks at Space.com explained that the moon's “halo or lunar halo” is an optical illusion that ...

The "moon halo" or "moon dog" is fairly common — especially as the weather gets colder. The ring is actually an optical illusion. It is caused when the moon light refracts off ice crystals in a thin ...