Revelation 8:12-13 - The Fourth Trumpet
12 And the fourth angel sounded, and a third part of the sun was smitten, and a third part of the moon, and a third part of the stars; so that the third part of them was darkened, and the day lost a third part of it's light, and the night likewise.
13 And I beheld, and heard an angel flying in the midst of heaven saying with a loud voice, Wo, wo, wo to the inhabitants on the earth from the other voices of the trumpet of the three angels, that are yet to sound.