Immediately after the tribulation of those days shall the sun be darkened, and the moon shall not give her light, and the stars shall fall from heaven, and the powers of the heavens shall be shaken: Mat 24:29 The Day Of The Lord has come.      The stars that fall from heaven are likely fallen angels as it says the powers of the heavens are shaken.

But in those days, after that tribulation, the sun shall be darkened, and the moon shall not give her light, Mar 13:24 This will precede the return of Christ.

And when he had opened the seventh seal, there was silence in heaven about the space of half an hour. Rev 8:1 What happens when the seventh seal is opened is the Day Of Wrath.

During the vision of the Seventh Seal Seven Angels each with a trumpet reveal aspects of the Wrath Of God that manifest.