PITCH BLACK: RAPTURE STUDY

We are going to study this verse in Revelation six: "And I beheld when he had opened the sixth seal, and, lo, there was a great earthquake; and the sun became black as sackcloth of hair, and the moon became as blood;" THE QUESTION WE ARE GOING TO EXPLORE IS HOW DOES THE MOON APPEAR IN ANY VISIBLE WAY SINCE THE SUN IS PITCH BLACK?