The asteroid pronomic 2005 YU55 that passed so close to Earth the other day, this raid asteroidian

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The asteroid pronomic 2005 YU55 that passed so close to Earth the other day, this raid asteroidian empowered many people to wonder if we were really able to remove the threat of asteroid that would prepare an intersection with Earth in its orbit. Of course, the natural disasters that would cause an asteroid that hit the Earth would be extremely high. Are relatively small rocks would be able to blow millions of people on the planet, how about really big asteroids - and that caused the Chicxulub event 65 million years ago - is hard to believe that humanity could survive such an impact . And yet, even if they carry signs devastation, asteroids offer a glimmer of hope. Hit an asteroid can be prevented, giving us time to deal with it!
"Today no known asteroid is not on a collision course with Earth," said Dr. David Morrison of the program NEO - Near Earth Object (NEO) Program, NASA, in a report a few years ago Spaceguard Survey analysis survey for cosmic objects spatially close. "Spaceguard pronomic Survey does not expect to identify any asteroid that threaten us directly. If, however, such a rock is found to have a collision course, we anticipate that we shall be able to apply the most secure technology to deflect the asteroid before it hit the Earth. Asteroid impact natural hazard occurrences, we can, in principle, eliminate entirely. "
First, we should take a picture of what we do. An object near Earth is an asteroid or a comet whose orbit comes near Earth - anything orbit to a distance of 195 million kilometers, the Earth's orbital vicinity. Some objects were observed traveling with us for millions of years, entering and exiting, then in our orbital path. Eventually, one of these objects might be in the wrong place at the wrong time and could hit the Earth.
Astronomers around the world are aware of the problem and are currently conducted several surveys to discover and catalog all asteroids that could potentially pronomic intersect with Earth as Spaceguard Survey, working in the sense of discovery all asteroids close to Earth, with a diameter than a kilometer away. Larger rocks as it has the potential pronomic to end human civilization as we know it, so it would be good to know if any of this is headed our way somehow.
Items less than 140 m in diameter could cause regional disasters and death of millions of people, if they hit a city bigger. Therefore, the smaller rocks are also a priority.
By on November 3, 2011, 8421 close Earth objects have been discovered. About 830 of the NEO are asteroids with a diameter pronomic of about 1 km or more. Also NEO 1262 of these were classified as having potential to achieve high approaches to our planet, with sufficient size to cause significant regional disaster in the event of an impact.
Furthermore, with the recent results from Explorer sounding infrared wide field of NASA (WISE spacecraft), combined pronomic with other surveys have found about 90% of those asteroids closer to our planet - astronomers now estimate that are about 19,500 average-sized asteroids near Earth, meaning that the majority of these mid-size asteroids remain to be discovered. These objects have a size between 100 and 1000 m long.
Astronomers are involved in creating a comprehensive list of all hazardous rocks from space. But if there is an asteroid named after us? How should pronomic we act to reach and destroy it, or even to divert the path of collision with Earth.
No mention of scenarios like Deep Impact or Armageddon, there is no way to stop an asteroid whose impact is expected in a few months - do not know and we do not have such technology. But suppose we have available a warning for decades. How can I stop?
Former Apollo astronaut, Rusty Schweickhart spoke to repeatedly turn UniverseToday