I had a similar dream a few weeks ago. I was at an "end of the world" dec 21 get together (mainly to pull out my bible and show everyone the truth of why "the earth remains forever") and we were looking out the window waiting for something to happen, when all of a sudden about 3 or 4 planets lined up, one being the moon. So it was the moon, I'm guessing Jupiter, a star about the same size and a larger red planet. Not in that order (can't remember the order). The only reason I didn't write this dream off is because in it I was reading my bible to people, so I figured it had been from God.