This is worth the time to watch and view the attending videos. Igo2slo has taken the time to look at "signs in the heavens" and try and correlate them to prophetic passages in the Bible and see if he can give us an overview of the end of the age. This is the overview video, and he has several others attached to this idea that will explain different details based on celestial occurrences and how they relate to Biblical prophecy. You may not agree, but I appreciate the work he's put in and he could be right...which means it's worth the look.
This is a timeline of Signs in the heavens that I have found.
http://www.youtube.com/watch?v=60rwp2I9Ljk
Youtube user name is Igo2slo4u2cme