The sun and the moon have been established by God forever (Psalm 89:37, 148:5-6). Therefore, predictions that the moon will one day crash to earth are falsehoods.
However, the day is coming when a great star will fall to earth.
“And the third angel sounded, and there fell a great star from heaven, burning as it were a lamp, and it fell upon the third part of the rivers, and upon the fountains of waters; And the name of the star is called Wormwood: and the third part of the waters became wormwood; and many men died of the waters, because they were made bitter” (Revelation 8:7-11).
Therefore, do as Jesus says: “…repent ye, and believe the gospel” (Mark 1:15) because he warns, saying: “Except ye repent, ye shall all likewise perish” (Luke 13:3).
“And in the times of this ignorance God winked at but now commandeth all men everywhere to repent. Because he hath appointed a day, in which he will judge the world in righteousness by that man whom he hath ordained” (Acts 17:30-31).
Be wise and repent before it is too late because we do not know when is the time (Matthew 24:36); and prior to the Day of Judgment, one coming day there is going to be a mass level extinction event when the third angel sounds which will be the count down to the End (Revelation 11:18).