The Asteroid 99942 (Apophis)

For some time, is increasingly mentioned in the media that an asteroid could collide against the Earth in the year 2036.Only within 19 years.

The asteroid 99942, also known as Apophis is one of the 127 objects that NASA has registered as potentially dangerous, because the probability of a collision against the Earth. Measured from 150 to 500 meters in diameter and is estimated to weigh more than 20 million tons.

The Asteroid Apophis.

Why you afraid?

Due to its orbit around the Sun, which is similar to that of the Earth, this object is often crossed with our planet. Astronomers have calculated that future approaches will be in the years 2013, 2021, 2029 and 2036. The first two do not have any danger because Apophis will pass far enough to be calm, but in the year 2029 the asteroid of the Earth is less than 38,000 miles, just over one tenth of the distance that separates us of the Moon (also remember that at that point we have several satellites that could be devastated if they encounter the asteroid). However, the force of gravity on earth could alter the asteroid’s trajectory closer to us, and this is again much more dangerous for its next meeting which will take place on April 13th of 2036.

In case of collision

Experts program NEO (Near Earth Objects) and NASA have calculated that the asteroid could fall on our planet anywhere along a wide diagonal band across the Pacific Ocean, from Siberia to the South American coast, and that extends to the edges of the African continent.
Most likely, the object falling into the water. This really does not save us, as its energy equivalent to one hundred thousand atomic bombs like Hiroshima, and it would be enough to cause tsunamis several hundred meters high, and these waves would wipe completely devastating the coasts of all continents.

Finally if you do not collide with the Earth, there is another problem that is increasing over the years and is raising potentially hazardous objects, gradually growing and the number is believed to anger over the passage of decades.
This risk is something normal, because if you look at the bark of the planets or our moon, we see that are full of craters, even on Earth are these huge scars across the planet. This is the proof that sooner or later, a comet, meteor or asteroid could collide with us.

You can see the video of what would happen if the asteroid hit the earth