remind you of a beautiful blood moon

This Sunday, when i read Joel, it says :"The sun will be turned into darkness And the moon into blood Before the great and awesome day".
I somehow heard about "red moon", but never pay much attention, and was curious how the moon can turn into blood? and why?.
So I did some research and found that there will be a beautiful "blood moon" eclipse tomorrow night, and there are 3 more blood moon in the coming one and half year of time.
Dont think this is usual, it is rare. so dont miss this chance.
It was traditionaly regard that this is a sign for the End of the World, but I believe it is NOT.
Good wishes to old friends.