Revelation 8:12-13 - The Fourth Trumpet
12 And the fourth angel sounded; and the third part of the sun was smitten, and the third part of the moon, and the third part of the stars, that the third part of them might be darkened, and that the day might not shine for the third part of it, and the night in like manner.
13 And I saw, and heard an eagle flying in mid-heaven, saying with a great voice, "Woe, woe, woe, to those who dwell on the earth, by reason of the other voices of the trumpet of the three angels who are about to sound!"