Another sign in the heavens? Imagine this asteroid, as big as a house, hitting the earth. It could cause quite a blast. Makes one stop and think, eh? Check out the article below to see a simulation of the consequences of an asteroid hitting the earth near London. And consider that an asteroid striking Mexico is believed to have caused the extinction of the dinosaurs.
Asteroid 2012 TC4 to pass ‘damn close’ to Earth today testing our space defences - but how prepared are we for a strike?