estimate that an asteroid more than 800 m in diameter hits the Earth every million years and a smaller one hits every century. An asteroid bigger than 1 km would mean the end of about 30% of the Worlds population. This size of an asteroid would be the equivalent explosion to 2 million Hiroshima bombs. This explosion would cause destruction of all living creatures within a hundred mile radius as well as blocking off the Sun with dust and rock particles for weeks or even months. Asteroids are probably the deadliest force that our solar system can produce, one strike could put man back in the dark ages and would kill almost the entire population of our planet. It is for this reason that scientists should focus more on understanding asteroids and research more into the defense of our planet. At the moment we only know where a fraction of the asteroids out there are. The asteroid that could destroy our planet could only be a year away and we dont even know it exists....
