Asteroids and meteorites that threaten Earth

At dawn on Tuesday, February 18, 2014 a giant rock passed three football pitches size (diameter 270 meters) was the estimated distance nine times almost like the distance between the Earth and the Moon, which is just two million six hundred thousand kilometers from Earth, the closest distance to the Rock in its orbit around the sun relative to the Earth.

This is called the Rock 2000-EM 26, was traveling at 43 thousand kilometers per hour, which is considered to be within the NEO -walta abbreviated letters "NEO". But what the general public gig all over the world is what they have heard from news agencies about the size of the destruction that can be caused. Always what scientists estimated the size of the potential destruction, even if does not happen, if, God forbid, the collision of the body such as this will result in the land was estimated at about 2500 Hiroshima bomb destructive power.

This concern members of the site called "Slough" (Slooh) mail to control this event through their cameras and satellite mechanism Tlescopathm through their website, and also through the site load your application on iPad devices.

It passed peacefully without something, then this phenomenon was repeated at the dawn on Thursday, February 20, 2014 from the same week where he passed from this rock-like rocks the size of a length of 98 meters in a building dubbed "BR57-2014" It was at a distance estimated at four times the distance between the Earth and the Moon, and passed it safely without something also.
In fact, there are tens of thousands of near-Earth objects, which participated in the monitoring of the astronomical telescope famous "PAN-STARRS-1" at the University of Hawaii, funded by the National Aeronautics and Space Administration (NASA).

Most of these objects of rocky asteroids and comets and the remnants of the solar system, their sizes ranging from regular rocks on the ground and rocks the size of buildings and a giant golf ball size, others the size of neighborhoods and cities!

Specialists, scientists say in this area that about 10% of these objects (asteroids) and that have a diameter less than a kilometer can affect the Earth in the future, and about 15 thousand of them are up to the size of a football field, about a hundred meters approximately, and more million, including body size up to less than thirty meters.
In the wake of the importance of this subject, NASA asked the US Congress in 2005 to allow them to search and detect celestial bodies that are up to a diameter of more than a hundred meters, where modern technology can face the danger of collision if the land was predictable enough time before it happens. Due to the near-Earth objects in 1998 Careful monitoring history when NASA launched a special program to monitor the path of objects approaching the Earth.

Due attention to these scientists asteroids because they capricious path and speed, which makes monitoring and tracking is difficult, and this in turn is a major threat on the ground. And change the course of these small objects comes from it is affected by a factor of gravitational pull of planets nearby as part of the hottest of them during exposure to the sun causes the change course and speed, and in this regard play attractive Jupiter (the largest planets of the solar system), a major role for the land, thanks to the huge mass of works trap of these asteroids and meteorites and waste the solar system and avoids the earth many dangers, but on the other hand, the giant planet Jupiter pays some of these rock masses out of the asteroid belt located between the orbit and the orbit of Mars, making it likely to fall on the ground at the same time.
The real danger lies in the objects that exceed a diameter of 150 meters and pass near the Earth less than eight million kilometers away, knowing that the land diameter of about 13 thousand kilometers, and in comparison, we find that Qatar meteor Ural mountain region, who fell on the Russian territory in 2013 does not exceed a diameter of 15 meters and weighed more than 11 tons and stems quickly twenty kilometers per second (any faster than a bullet), causing light resounding exceeded sunlight, and issued a powerful roar even hit the ground and cause injury more than a thousand people as a result of broken glass and fly by the sound of the explosion, which was heard in the voice of six cities around the region, and finally part of it landed in a nearby lake, and after nearly a month of research and exploration have been recovered this part of the bottom of the lake and found that weighed more than 650 pounds, and was buried at twenty meters under a thick layer of mud depth, and now has been developed Museum in the region that has killed.

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