Revelation 8:12-13 - The Fourth Trumpet
12 Then the fourth angel blew his trumpet, and one third of the sun was blasted, and one third of the moon and one third of the stars, so that one third of them were darkened, and there was no light for one third of the day and of the night.
13 Then in my vision I heard an eagle flying in midair say in a loud voice, "Alas! Alas! Alas for the inhabitants of the earth, because of the other blasts of the three angels who are going to blow their trumpets!"