I think anyone to make the statement that no large anything could hit this planet in a thousand years is ignorant to real facts. Yes we have local asteroids alot of them, but this star and it's following planets and all the other stuff captured in its solar system it's dragging in space is traveling fast thru space nobody alive today has seen before. We have no clue if,when or how something can come out of the blackness of space and go right thru our solar system, maybe big enough and fast enough to not get captured by a planet or the suns tug. It also could do major damage to any bodies in our solar system. Remember any planet disruption in our solar system could have a life altering disaster on our planet. Remember we now know not only are their rogue black holes, we now know we have rogue planets. What we don't know....is what we don't know. At least admitted to us in public, because I'll guarantee they're is a whole lot we are not being told in public. Oz