Just a few points to ponder....
In Luke 21 the people do look up in fear of the things coming upon the earth.
In Revelation when the 6th seal is initiated the people of the earth hide in the "dens" caves etc....the word dens when studied equates to something that has been prepared like BUNKERS and there seems to be ample evidence that the rich are preparing bunkers as we type.
And there seems to be ample historical evidence that many civilizations has pictures in stone depicting a 10th massive body (planet) within our system......one such account from the Sumerians