Máni

Mani is a god in Norse mythology. He was made when the sparks of the realm of fire were collected. The other gods were not pleased with Mani and his sister Sol. So the gods made them ride in carts. The purpose of the siblings being in the carts was to guide the moon and sun. The reason for the waxing and waning moons is because Mani took two kids so they would cover parts of the moon. The reason for lunar eclipses is Hati (the offspring of Fenrir who is to chase Mani) getting close to Mani. At Ragnarok, Hati will finally consume Mani.

This short article about religion can be made longer. You can help Wikipedia by adding to it.

Máni Media

A depiction of Máni and Sól (1895) by Lorenz Frølich.
The Wolves Pursuing Sol and Mani (1909) by J. C. Dollman
"Far away and long ago" (1920) by Willy Pogany.
A 19th century depiction of The Man in the Moon from folklore in areas of Germanic Europe