15Gigantic Asteroid Hits EarthMatt Weber: May 02, 2014 | 708,677 views
This plausible theory could possibly have caused the extinction of dinosaurs. Let's face it, us humans didn't manage it on our own. Small asteroids, flying bits of debris from outer space, hit earth everyday. Most of the time we don't even realize it. But larger asteroids, measuring up to a whopping 160 km have been known to hit Earth millions and millions of years ago. What happens if one of those monsters hits again? Scientists claim that it would take an asteroid of only 1.6km wide to wipe us all out. What is even worse is that such a cosmic beast is predicted to hit the earth every 10 million years. The question is, where on that 10 million year cycle do we currently lie?
It would be pointing out the obvious here to mention the fact that international relations between many powerful countries have seen better days. We are all aware of tense relations between countries that boast scary nuclear weapons, including Russia and North Korea. Something you didn't know though that might raise the hair a little is the fact that of those 9 countries that home nuclear weapons, 4 of those are pretty much free to do anything they please with them. This is because only 5 countries are included in the Nuclear Non-Poliferation Treaty. The only saving grace here might be the fact that it would take 1,000 nuclear weapons to be launched to wipe out the entire world population. Most of us probably expect that one alone would wipe us all out, but no, it would take that many. That doesn't mean however that a few of them babies couldn't wipe half of us out and leave the rest doomed to eternal climate indifference and darkness that would eventually kill us.