We humans are killing our world much faster than orbiting planets or aligning suns possibly can. Right now we're having a cataclysm with all the oil everywhere, we just haven't realized it yet.
I grew up on an island that shook regularly and can't count the number of times I heard that the world was going to end. I've given up waiting for it, and just live an ordinary life. This kind of prediction has been going on for a long time.