In the center is the eye of Odhin who is the Nordic god of knowledge and wisdom between other many things, he give an eye to Mimir the wise in order to drink from the well of knowledge, and as such this eye represent his wisdom and knowledge.
Inside the eye is pictured the moon and the earth also the stars as a symbol of what this eye will be watching, the eye is encircled by a triquet an ancient symbol of life, death and reborn, the eternal cycle of life on earth which we should always remember even in outer space as we are not spare from this cycle.
On each corner is a motif of two ravens that represents Odhin´s ravens Hugin an Munin, thoughts and memory respectively, two important aspects of Odhin as well as humanity.
The colors white and blue represent the division between space and earth as well as day and night , and the eye an triquet symbol is placed on the middle so we remember that earth and space just like day and night are not separated things but complements.