Dr.Traveler
Mathematician
- Aug 31, 2009
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Only tiny asteroids can hit the earth, a big asteroid will have enough mass that it will be captured by the sun's gravitational pull. An Asteroid with enough mass will be deflected by the opposing magnetic forces of our planet as well as the bigger planets in our solar system. We have a perfect solar system designed to protect us from big asteroids, our planet would of been destroyed eons go if another truth exsisted.
I'd like to see the science supporting that.
We most certainly can get hit. We've come close several times. What has done a good job protecting us so far is the fact we have a few VERY large planets that do a good job deflecting/catching lone comets. That doesn't mean a random one won't get through... in fact its likely one eventually will.
Scary fact, even a near miss could be enough to collapse our ecology thanks to gravitational forces. For example, the moon is actually a pretty decent distance from Earth and yet it has sufficient mass to cause gravitational forces and impact the tides. A large object, passing inside the moon's radius, could be devesating.