Feverishly, scientists began to consider the terrible damage that our planet would experience if a comet or an asteroid had hit the. Here's what they think would be the immediate consequences of a major collision: First, a tremendous plume of dust and stones would be. In falling, the debris would form a shower of meteors that burned the sky and forests and grasslands ablaze, killing almost all life on earth. The dust that remain suspended longer in the atmosphere would obscure the light from the Sun on the Earth's surface and veiled, the temperature would drop, photosynthesis would end. The cessation of photosynthesis would disrupt ocean food chain, which condemn to death almost all marine creatures. Finally, acid rain across the planet and the destruction of the ozone layer would crown this ecological disaster. 
If the same asteroid fell into the ocean, it would cause tidal wave of incredible destructive power. Befall the killer waves far beyond the point of impact that the first shock wave, and would merely spread devastation on the coast located thousands of miles. Prognosis of Jack Hills, an astronomer: "The towns erased by the water would not be a stretch of mud. "
asteroids, comets, and Earth Today, we predicted the end of the planet as strange of all, a disaster caused by an asteroid or comet. We hear terms like "near-Earth objects" or "potentially hazardous objects" in connection with doomsday predictions that the Earth will be destroyed by impacts of celestial bodies. Hollywood was immediately converted these fears into commercial successes with films such as Deep Impact and Armageddon.
What risks you and your children are you going to be destroyed by a fireball emerged from the sky? See you soon rain in your yard pieces of iron and ice? If you live near a coast, your home will she one day away by a tidal wave because a wandering asteroid has fallen into the sea?
Scientists?
Can they be wrong? Some say no and insist that, given the studies that scientists have done, we can believe what they are telling us, 100% reliable. Is this an exaggerated faith in people? Certainly. Scientific or not, they remain imperfect humans prone to error. Moreover, it is undeniable that they are not masters of time and events. The earth, our solar system and the universe does not belong to them, they are not the master craftsmen and never will. Certainly they are based on calculations, calculations themselves subject to immutable laws ... and has implemented these laws? Add many other things they can not explain either as master: Our planet supendue into nothingness, rotation unchanged, the interaction between it and the moon, its exact distance from the sun ... And we are talking here of jewelry on which we live, our place of residence. Earth!
They are not God!
not swallow everything the scientists say. One must be careful with these assertions. These theories are largely just speculation. It is obvious that no one has seen or studied the effects of a collision between an asteroid and the Earth. In addition, the media of publicity are quick to give in the sensational headlines, from incomplete information or inaccurate. In reality, it is said that the odds of being killed by an object fell from the sky are considerably lower than those of being killed in a road accident.
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