New
#111
Wishmaster,
I started to reply to a post of your's that was made after the last one now in this thread, I don't know if you deleted it, or someone else did, so I won't include it in this. However, I remember seeing an episode of Nova recently, that spoke of NEOs (Near Earth Objects), which are comets, asteriods, etc., which pass near the Earth, some of which could collide with it. It spoke of one in particular, that was supposed to pass in ~2025...I think, nearer than anything like it before, but was to miss. However, depending on how it passed in relationship to something called a "keyhole", it might return a few years later, perhaps 2029, and hit.
For reasons of my own, I doubt that this will occur, but they also spoke of the fact that there is a high probability of other NEOs out there, on a collision course with Earth, that could go undetected until the very last moments. So, science and governments could not necessarily offer any protection.
EDIT: Looking again, the post wasn't deleted, but heavily edited, so I shall assume that you did so yourself.