The asteroid almost hit the earth

Not much attention, the earth was almost hit by an asteroid 6 November last. Astronomers know the arrival of an asteroid's speed at 8700 miles remaining time to live 15 hours.

Asteroid orbital trajectory that was 30 times closer than the moon, a distance of 250,000 miles.

Although the track asteroid 9000 miles away from earth, but its size is only 23 feet in diameter and will not make a dent in the ground.

Destruction in Tunguska, Siberia in 1908 that caused the meteorite impact, creating the effect was so strong that the explosion flattened 1200 square miles of forest.

Sized objects are similar to the Earth passes close to two times a year and crashed into the planet about once every five years.

Astronomers believe the object, called 2009 VA, burned down completely when entering the earth's atmosphere, and causing a fireball in the sky and caused great damage on the surface.

The new asteroid discovered by the Catalina Sky Survey on November 6, 2009. Later is identified by the Minor Planet Center in Cambridge, Massachusetts as the object closest to the earth.

Near Earth Object Program NASA plot the trajectory of the object's orbit and are confident that will not hit, although flying very close to the earth.

It is the third closest object hit the earth and is not listed on the asteroid catalog. NASA NEO Program aims to detect and track at least 90 percent of the 1000 asteroids. A comet is approaching Earth with a diameter of 0.6 miles will happen in the year 2020.

NASA has been monitoring an asteroid 100 feet in diameter, the whirring 45,000 miles above the earth, is in early March this year. Similar-sized object that hit in Tunguska.