Astronomers 4, the report said, an asteroid will in 8, next to fly over from the earth, and the earth does not exist or the moon of the collision of may. cheap jordan shoes,The asteroid, code-named "2005 YU55", the diameter is about 400 m, will be in the eastern time 8, when 18 to 28 points from earth in recently, when both sides and about 323000 km apart--less than the distance between the earth and the moon. The astronomer said, this will make them get a chance close observation the asteroid, and need not special emission detectors.

The national science foundation astronomers Scott fischer, the day of media said: "this is the first time since 1976 have so large body so closer to the earth, that flew over from beside will give us provide a good chance to research similar near earth objects." NASA's jet propulsion laboratory senior researcher don · about mance, says that day know much about the asteroid literary world of rail and position, "the star and the earth or the moon objects don't have collided might". cheap jordan shoes store,Preliminary studies suggest that, the asteroid is black than charcoal, to C asteroids, this means that its main composition may is carbon material and Portland. Astronomers hope through the spectrum analysis to confirm its chemical composition. Because they are too dark, the asteroid will not with the naked eye to watch, but in the northern hemisphere observers when through certain diameter can be astronomical telescope were observed.

Asteroids are similar to the inner solar system planets around the sun sports, but the volume and quality of the planet than smaller objects. The asteroid is the formation of the solar system of the residual after material. Have a kind of speculation that they may be a mysterious planets the wreckage, the planet in ancient times had a gigantic cosmic collision and destroyed. But from the asteroid trappings, they are not like had gathered together. If all asteroid together consists of a single object, it's less than 1500 kilometers in diameter than the moon, the radius is small. Because asteroids are the early solar system material, the scientists to their ingredients very interested. Space probe after asteroid belt discovered that, the asteroid belt actually very open, asteroids and very distant space between asteroids. air jordan shoes,1991 years ago in the asteroid data based on the ground just through the observation. In October 1991, Galileo Jupiter detector visited 951 Gaspra asteroids, obtained the first piece of high resolution photos of asteroids. In August, 1993, Galileo and to fly via 243 asteroids Ida, make it become the second star spacecraft visited asteroid. Gaspra and Ida asteroids are rich in metal, belong to s-type asteroid. We know a lot of the asteroid is through the analysis fall to the earth's surface of space debris. The colliding with earth asteroid called flow stars. When flow astral high-speed broke into our atmosphere, the surface of rubbing and air temperature and vaporization, and a strong light, this is a shooting star. If flow astral not completely destroyed and fell to the ground, then called the meteorite.